BEGIN:VCALENDAR VERSION:2.0 PRODID:-//SNS Events//1.0 CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Astrophysics: Princeton University X-WR-CALDESC:Astrophysics: Princeton University BEGIN:VEVENT UID:1233860400a24e0847061514ccd8cdb8299977d75a@sns.ias.edu DTSTART:20090205T190000Z DTEND:20090205T190000Z SUMMARY:Princeton University Gravity Group Astrophysics Special Seminar, "The Non-linear Evolution of the Cosmic Microwave Background" (Cyril Pitrou, University of Oslo) DESCRIPTION:Non-Gaussian effects in the cosmic microwave background (CMB) can arise either from the primordial phase of the universe or from the subsequent non-linear evolution. I will focus on the latter point and review the perturbation theory beyond linear order. I will detail how the kinetic theory can be used in cosmology to derive the evolution of perturbations for polarized radiation. Finally I will present why the collapse of dark matter is the main source of non-Gaussianity in the CMB on small scales. LOCATION:Jadwin 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12338694008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090205T213000Z DTEND:20090205T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Bringing NQR Echoes into Focus" (Karen Sauer, George Mason University) DESCRIPTION:In a spin system characterized by weak signals and rapid decay times, spin echoes extend the hope of compensation. This is particularly true in Nuclear Quadrupole Resonance NQR, a type of radio-frequency spectroscopy done at zero-field and potentially useful for detection of contraband. The creation of echo trains effectively extends the signal in time by up to 3 orders of magnitude and can reveal the fundamental broadening mechanisms. We explore these broadening mechanisms. In contrast to an echo train, we also show that an echo forms after a single radio-frequency pulse, as is evident in a power-limited regime where the Larmor frequency approaches the linewidth. LOCATION:Jadwin Hall A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123386940016ee2981ea921c60fb090e5e6d822cfd@sns.ias.edu DTSTART:20090205T213000Z DTEND:20090205T213000Z SUMMARY:Princeton University Astrophysics Talk, "Observing Planet Formation with Infrared Imaging Spectroscopy" (Klaus Pontoppidan, California Institute of Technology) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1233936000ee1d174a7ff7fac1cce8f3e35467855c@sns.ias.edu DTSTART:20090206T160000Z DTEND:20090206T160000Z SUMMARY:Princeton University Astrophysics Talk - ADDED, "A New High Contrast Imaging Program for Exoplanetary Science at Palomary" (Sasha Hinkley, Columbia University) DESCRIPTION:In July 2008, a new integral field spectrograph and coronagraph was installed behind the adaptive optics system at the Hale 200-inch telescope at Palomar. This package, called "Project 1640" serves as the basis of a long-term observational program in high-contrast imaging at Palomar. Our J and H band spectrograph will aid in speckle suppression as well as giving us low resolution spectra of brown dwarfs and exoplanets. This system is the first of a new generation of apodized pupil coronagraphs combined with high-order adaptive optics and integral field spectrographs (e.g. GPI and SPHERE). I will describe this project, and show some recent first light data. LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1233939600c08f6c6bc13b0f340e7a9990ad66ae42@sns.ias.edu DTSTART:20090206T170000Z DTEND:20090206T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TOPIC ADDED , "New Low-frequency High-precision Absolute CMB Temperature Measurements from ARCADE" (Alan Kogut, NASA) DESCRIPTION:[see hoagie list ] LOCATION:Jadwin 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1233950400e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090206T200000Z DTEND:20090206T200000Z SUMMARY:Rutgers University Astrophysics Seminar , "Control of Star Formation by Gravitational Instability" (Mordecai-Mark Mac Low, American Museum of Natural History) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12341988005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090209T170000Z DTEND:20090209T170000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "X-ray Clusters in the ACT Strip" (Jack Hughes, Rutgers, The State University of New Jersey) DESCRIPTION: LOCATION:385E Serin Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12342096006fd9d4a38a87f567ec614b073ad3c9cc@sns.ias.edu DTSTART:20090209T200000Z DTEND:20090209T200000Z SUMMARY:University of Pennsylvania Astrophysics Special Seminar - ADDED, "Far-Ultraviolet Molecular Fluorescence in Astrophysical Contexts" (Roxana E. Lupu, Johns Hopkins University) DESCRIPTION:Molecular fluorescence is a direct probe of the interaction between the radiation field and molecular gas. The fluorescence yields diagnostic transitions in the UV (electronic), near-infrared (vibration) and mid-far infrared (rotational) part of the spectrum. These spectral lines can serve as a sensitive diagnostic tool for the composition, energy transport, and excitation mechanisms in the interstellar medium. However, the data interpretation and the molecular abundance determinations are often complicated by optical depth effects. I will present some examples of far-ultraviolet molecular fluorescence modeling, applied to HST, FUSE, and HUT observations of cometary comae, planetary atmospheres, and planetary nebulae. The addition of infrared and optical follow-ups to the far-ultraviolet measurements helps constrain the molecular excitation mechanisms, and the spatial correlations between molecular gas and dust. In the far-ultraviolet, molecular line formation is also entangled with the strength of the stellar radiation field and the dust scattering properties. Accounting for the total energy output from hot young stars and its processing by gas and dust is important in understanding star formation and the escape of ionizing radiation from galaxies. We are trying to address these problems with our recent rocket observations of OB stars and surrounding nebular material, by estimating the relative contribution of molecular hydrogen fluorescence and dust to the scattered light, and by setting up programs to explore the longer wavelength counterparts. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234301400c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090210T213000Z DTEND:20090210T213000Z SUMMARY:Princeton University Astronomy Colloquium, "Where Did Half the Starlight in the Universe Go?" (Mark Devlin, University of Pennsylvania) DESCRIPTION:We believe that approximately half of all the light from stars is absorbedand reprocessed by dust. The resulting emission is grey body with atemperature near 30 Kelvin. The COBE satellite made the first measurementsof the resulting Far Infrared Background (FIRB), but since that time, wehave been unable to resolve the background into individual galaxies. TheBalloon-borne Large Aperture Submillimeter Telescope (BLAST) was designed todo this job. Its three bands at 250, 350, and 500 microns span the peak inemission for galaxies at z=1. I will discuss the BLAST experiment andpresent results from our measurements of resolved and unresolved galaxies. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234373400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090211T173000Z DTEND:20090211T173000Z SUMMARY: Princeton University Wunch Talk, "On the Mass of Massive Galaxies" (Adam Bolton, University of Hawaii) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234386900492c3c79d127b2482444c69e5f950d24@sns.ias.edu DTSTART:20090211T211500Z DTEND:20090211T211500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia, "Can a Single Graviton be Observed?" (Freeman Dyson, Institute for Advanced Study) DESCRIPTION:The observed orbital shrinkage of double pulsars provides evidence that the pulsars emit gravitational waves at the rate predicted by the classical Einstein equations of general relativity. The LIGO experiment now in operation is designed to detect kilohertz gravitational waves from astronomical sources. Nobody doubts that classical gravitational waves are in principle detectable. This talk is concerned with a different question, whether it is in principle possible to detect individual gravitons, or in other words, whether it is possible to detect directly the quantization of the gravitational field. It is proved that detectors with the LIGO design, detecting gravitational waves by measuring their effects on the geometry of space-time, cannot detect single gravitons. It remains possible that other types of detector could do the job. The talk raises a question but does not yet answer it. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12344868007391e313cb539ee74d0b0eac61ce864c@sns.ias.edu DTSTART:20090213T010000Z DTEND:20090213T010000Z SUMMARY:Princeton University Sackler Lecture in Astrophysics / Princeton Center for Theoretical Science - Big Bang and Beyond Program Public Lecture, "Inflationary Cosmology: Is Our Universe Part of a Multiverse?" (Alan Guth, Massachusetts Institute of Technology) DESCRIPTION:LONG PROGRAM 2008-2009: "Big Bang and Beyond"Note: The public lecture does not require registration.Program Organizers: Nima Arkani-Hamed (IAS), Igor Klebanov, Jean-Luc Lehners, David Spergel, Paul Steinhardt, Matt Strassler (Rutgers), Herman Verlinde. Sponsored by The D. E. Shaw Group. Big Bang and Beyond, running from Fall 2008 thru Spring 2009, is designed to identify and explore the forefront issues concerning events surrounding the big bang and how they relate to both cosmological observations and particle accelerator experiments. The program is organized around a series of microsymposia on topics - observational cosmology, strings and inflation, forefronts of LHC physics, cyclic and bouncing cosmologies, the string landscape, the cosmic singularity problem, eternal inflation, dark matter and dark energy. Each microsymposium will be followed by meetings on MWF with further seminars, talks and discussions.For more details, go to: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. ABSTRACT - "Inflationary Cosmology: Is Our Universe Part of a Multiverse?" The inflationary theory is a twist on the conventional big bang theory, proposing a modification to the history of the universe during its first quadrillionth of a quadillionth of a second. I will begin by explaining how inflation works, and then I will discuss some of the key properties of our universe that suggest that it actually arose from inflation. For example, the universe is found to be amazingly smooth when averaged over large regions, far smoother than would be expected from a normal explosion. Yet on smaller scales, the universe exhibits a complicated structure of stars, galaxies, and clusters of galaxies. Inflation can explain both the smoothness and the structure. After explaining these features of inflation, I will explain how almost all detailed versions of inflation give rise not merely to one universe, but to a multiverse: an infinite set of "pocket universes," each of which would be much larger than the region that we currently observe. LOCATION:McDonnell, Room A-02 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234535400812d728aa35c910edf7074c7e9376262@sns.ias.edu DTSTART:20090213T143000Z DTEND:20090213T143000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Micro-Symposium, "Eternal Inflation" (Alan Guth (MIT), Alexander Vilenkin (Tufts), Stephen Shenker (Stanford University), Anthony Aguirre (UCSC), See details http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond - Eternal Inflation**: Examining the properties, advantages and pitfalls of eternal inflation. Speakers: Alan Guth, MIT; Anthony Aguirre, UCSC; Alexander Vilenkin, Tufts; Stephen Shenker, Stanford University; Anthony Aguirre, University of California, Santa Cruz. **Note: If you are planning to attend, they request that you register in advance at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. LOCATION:PCTS, Jadwin Hall, 4th floor, Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234555200e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090213T200000Z DTEND:20090213T200000Z SUMMARY:Rutgers University Astrophysics Seminar , "The Stellar Population Synthesis Technique" (Charlie Conroy, Princeton University) DESCRIPTION:The SPS technique is deceptively simple. Relying on stellar evolution calculations, stellar spectral libraries, and dust models, practitioners of SPS aim to convert the observed spectral energy distributions of galaxies into physical properties. Knowledge of these physical properties, which range from stellar masses to star formation rates and metallicities, are essential for understanding the formation and evolution of galaxies. The SPS framework thus provides the fundamental link between theory and observations. Despite its importance, a systematic investigation of the uncertainties in SPS is lacking. In this talk I will describe ongoing work exploring the panoply of uncertainties in SPS, including uncertainties in stellar evolution, dust models, and initial mass functions, amonst others, and their propagation into the derived physical properties of galaxies. I will also briefly outline future work aimed at the creation and public release of a comprehensive, robust catalog of physical properties of galaxies from the final data release of the Sloan Digital Sky Survey. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234805400a7e63d93e58b9efc028e906794538fb5@sns.ias.edu DTSTART:20090216T173000Z DTEND:20090216T173000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting Lunch, "Lunch" (Please Register, http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. Microsyposium Monday speakers: Ben Freivogel, Berkeley and Andreas Albrecht. Group meeting** agenda available at the site below. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html12:30 - Lunch; 1:00 - 3:30 - Microsymposium. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234807200fe27ebecb95890b7f41592e333cd145c@sns.ias.edu DTSTART:20090216T180000Z DTEND:20090216T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting, "Eternal Inflation, Bubble Collisions, and the Disintegration of Memory" (Ben Freivogel, Berkeley University) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. Group meeting agenda available at the site below. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. 12:30 - Lunch; 1:00 - 3:30 - Microsymposium speakers. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234807200fe27ebecb95890b7f41592e333cd145c@sns.ias.edu DTSTART:20090216T180000Z DTEND:20090216T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting, "Observables in Quantum Cosmology: Implications for Inflation" (Andreas Albrecht, University of California, Davis) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. Group meeting agenda available at the site below. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. 12:30 - Lunch; 1:00 - 3:30 - Microsymposium speakers. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234906200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090217T213000Z DTEND:20090217T213000Z SUMMARY:Princeton University Astronomy Colloquium, "Planets in Transit: Evolution Models, Compositions and Statistics" (Tristan Guiliot, Observatoire de la Cote d'Azur) DESCRIPTION: With a steadily growing number of known transiting planets and the realisation that no less than 10,000,000 planets transit stars in our Galaxy alone, a lot is to be learned from the present discoveries and much more is to be expected for the future. The vast majority of transiting planets known today are gaseous giant planets. For them, a proper knowledge of their evolution is crucial because how they contract directly affects what we can infer on their composition. However, uncertainties abound: on the equations of state to be used, on the opacities in little known pressure-temperature regimes, and on physical processes themselves, in particular heat dissipation due to stellar tides. Taken individually, these uncertainties generally prevent from infering the planet's global composition. For example, some planets are found to be larger than possible for a hydrogen- helium planet of that age, mass and irradiation level when calculated with standard evolution models. However, by using the same hypotheses for all planets, it is then possible to infer model-dependent global planetary compositions and relate it to other observables. It is thus found that the "metallicity" of stars and that planets are correlated, giant planets orbiting close to very metal-rich stars being found to possess up to ~100 Earth masses in heavy elements. I will discuss how further insight can be obtained from statistical models of the star and planet populations and their comparison to transiting surveys. I will finally present a few intringuing planets, in connection to the CoRoT mission. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234978200a7e63d93e58b9efc028e906794538fb5@sns.ias.edu DTSTART:20090218T173000Z DTEND:20090218T173000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting Lunch, "Eternal Inflation" (Lunch, Register at http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. Confirmed Speakers at Microsyposium: Kazuya Koyama, Unviersity of Portsmouth; and Leonardo Senatore, Institute for Advanced Study. Group meeting** agenda available at the site below. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. 12:30 - Lunch; 1:00 - 3:30 - Microsymposium. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234980000fe27ebecb95890b7f41592e333cd145c@sns.ias.edu DTSTART:20090218T180000Z DTEND:20090218T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting, "Large Primordial Non-Gaussianity from Early Universe" (Kazuya Koyama, University of Portsmouth) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. 12:30 - Lunch; 1:00 - 3:30 - Microsymposium. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1234980000fe27ebecb95890b7f41592e333cd145c@sns.ias.edu DTSTART:20090218T180000Z DTEND:20090218T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program Group Meeting, "Limits on Non-Gaussianities from WMAP 5-year Data" (Leonardo Senatore, Institute for Advanced Study) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program. Examining the properties, advantages and pitfalls of eternal inflation. **Note: Micro-symposia or associated Group Meetings require registration. See more details and register at: http://pcts.princeton.edu/pcts/bigbang/bigbang.html. 12:30 - Lunch; 1:00 - 3:30 - Microsymposium. LOCATION:PCTS, Jadwin Hall, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12349836009e5b73fe8148579ebb562ad977b4e6e8@sns.ias.edu DTSTART:20090218T190000Z DTEND:20090218T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - TOPIC ADDED, "Statistical Foundations of Photometric Astronomy" (Tamas Budavari, Johns Hopkins University) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12349908006bb4bc947e2b744b2a17c20d4d7c7ee8@sns.ias.edu DTSTART:20090218T210000Z DTEND:20090218T210000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia - TOPIC UPDATED, "Laser Guide Star Imaging with Adaptive Optics" (Claire Max, University of California, Santa Cruz) DESCRIPTION:Adaptive Optics is a technology that detects and corrects changing distortions in optical systems. It has been applied to great effect during the past decade for correcting astronomical telescopes for blurring due to turbulence in the Earth's atmosphere, and for imaging the living human retina. This talk will describe the history of Adaptive Optics (AO) and laser guide stars, give a status report on their current technology as applied to both astronomy and retinal imaging, and describe some scientific highlights obtained via AO: close-up views of black holes in colliding galaxies, and imaging of three dimensional structures in the living human retina. The talk will conclude with a view of future technological developments and new scientific applications. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123499350061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20090218T214500Z DTEND:20090218T214500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "Stellar Explosions, Neutrinos and Nucleosynthesis" (Gail Mclaughlin, North Carolina State University) DESCRIPTION:We explore the element synthesis that occurs in hot outflows from supernovae, gamma ray bursts and compact object mergers. These environments have intense neutrino fluxes, and we elucidate the role that neutrinos play in determining the final element abundance distributions. We also comment on uncertainties which stem from astrophysical conditions, neutrino properties and nuclear data. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12350790008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090219T213000Z DTEND:20090219T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Quantum Mechanics on Giant Scales" (Nergis Malvalvala, Massachusetts Institute of Technology) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235149200cb937dbd86847fa0f4414f6df3794613@sns.ias.edu DTSTART:20090220T170000Z DTEND:20090220T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - ADDED , "LIGO and the Search for the Elusive Gravitational Wave" (Nergis Malvalvala, Massachusetts Institute of Technology) DESCRIPTION:As the Laser Interferometer Gravitational-wave Observatory (LIGO) and its international counterparts are carrying out the most sensitive astrophysical searches to date, we enter an exciting new era of gravitational wave astronomy. I will describe the present status of and recent results from the currently operational LIGO interferometers, followed by a discussion of planned enhancements and the path to higher sensitivity next-generation detectors. See hoagie list:http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=322 LOCATION:Jadwin 111 (DIFFERENT ROOM) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235165400a983ad550a2223f56f7cdf5152963072@sns.ias.edu DTSTART:20090220T213000Z DTEND:20090220T213000Z SUMMARY:Princeton University Department of Astronomy and Astrophysics Talk - ADDED, "Adaptive Optics Measurements of Black Hole Masses in Colliding Galaxies" (Claire Max, University of California, Santa Cruz) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235225700ff52ee0a51c4a5d1ef77e3cc99477b01@sns.ias.edu DTSTART:20090221T141500Z DTEND:20090221T141500Z SUMMARY:Princeton University Department of Astronomy and Astrophysics Madison Medal Talk - ADDED, "An Adaptive Optics View of Black Holes in Colliding Galaxies" (Claire Max, University of California, Santa Cruz) DESCRIPTION: LOCATION:Alexander Hall, Richardson Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235408400160b9a3bf2a4e586b4986be5d544300f@sns.ias.edu DTSTART:20090223T170000Z DTEND:20090223T170000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group - ADDED, "Various" (Various) DESCRIPTION: This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly,. The venue is Peyton Hall Rm. 33 and the timeis Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12354084005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090223T170000Z DTEND:20090223T170000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "The Morphological Properties of Lyman Alpha Emitters" (Nicholas Bond, Rutgers, The State University of New Jersey) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12354174000b9a1e2e9e7e746c143729f82baa9fd7@sns.ias.edu DTSTART:20090223T193000Z DTEND:20090223T193000Z SUMMARY:Institute for Advanced Study/Princeton University Joint High Energy/Astrophysics Seminar, "Some Comments on the Recent Galactic Cosmic-ray Anomalies" (Eli Waxman, Weizmann Institute) DESCRIPTION: LOCATION:Institute for Advanced Study, Bloomberg Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235511000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090224T213000Z DTEND:20090224T213000Z SUMMARY:Princeton University Astronomy Colloquium, "The Structure and Evolution of Pulsar Wind Nebulae" (Pat Slane, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:The extended nebulae formed as pulsar winds expand into their surroundings provide information about the composition of the winds, the injection history from the host pulsar, and the material into which the nebulae are expanding. Observations from across the electromagnetic spectrum provide constraints on the evolution of the nebulae, the density and composition of the surrounding ejecta, the geometry of the central engines, and the long-term fate of the energetic particles produced in these systems. Here I provide a broad overview of the structure of pulsar wind nebulae, with specific examples from observations extending from the radio band to very high energy gamma-rays that demonstrate our ability to constrain the history and ultimate fate of the energy released in the spin-down of young pulsars. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235581200bcadbcede37c32a195d0d55ea78a0183@sns.ias.edu DTSTART:20090225T170000Z DTEND:20090225T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - DIFFERENT DAY/ROOM UPDATED, "Results from Five Years of Cosmic Background Imager Data" (Jonathan Sievers, Canadian Institute for Theoretical Astrophysics) DESCRIPTION:The Cosmic Background Imager (CBI) was a 13-element 30 GHz interferometer operating at 5,000 meters in the Chilean Andes. I present the final CMB power spectrum from 5 years of CBI data, covering the angular scales ell ~ 400-4000. As part of this work, we have measured several thousand radio point sources using the 100m Green Bank Telescope and the 40m Owens Valley Telescope to constrain the power from faint, unresolved point sources. At high-ell (>1800), the CBI sees significant power above the primordial CMB fluctuations. We find the power is a factor of 5-6 more than expected from faint radio soruces. It is marginally consistent (~1.6 sigma) with the power expected from the thermal Sunyaev-Zeldovich effect from galaxy clusters in a sigma_8=0.8 universe. There appears to be a broad consistency among different experiments in the high-ell regime if the power CBI observes is due to tSZ. I also discuss some cosmological implications of the high-ell data, which can be useful in constraining models beyond standard 6-parameter lambda-CDM.Link: http://xxx.lanl.gov/abs/0901.4540 See hoagie list:http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=322 LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123558300096b24b0e8da43da0d437099e6eefb382@sns.ias.edu DTSTART:20090225T173000Z DTEND:20090225T173000Z SUMMARY: Princeton University Wunch Talk - TOPIC ADDED, "The Stellar Population Synthesis Technique" (Charlie Conroy, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123558840062697dccd0424c4f5218fcbea71bc76d@sns.ias.edu DTSTART:20090225T190000Z DTEND:20090225T190000Z SUMMARY:University of Pennsylvania Astrophysics/Particle Cosmology Seminar, "A Periodic Table for Black Hole Orbits" (Janna Levin, Barnard College) DESCRIPTION:The imminent gravitational wave observatories promise the first direct detection of black holes through gravitational radiation. Successful detection requires a detailed knowledge of the dynamics. Yet the orbits around black holes were, until recently, poorly understood. We demonstrate that the entire dynamics can be understood through a taxonomy of perfectly periodic orbits with a natural correspondence to the rational numbers. In analogy with the chemical periodic table, this allows us to build periodic tables of black hole orbits. We find that the simple precessing ellipse familiar from planetary orbits is not allowed in the strong-field regime. Instead, eccentric orbits trace out precessions of multi-leaf clovers in the final stages of inspiral. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12355920003915d72a070acbc181ef959ac2b15ba4@sns.ias.edu DTSTART:20090225T200000Z DTEND:20090225T200000Z SUMMARY:The Annual John Bahcall Distinguished Lecture - LOCATION CORRECTED, "The Galaxy-forming Main Sequence" (Sandra Faber, University of California, Santa Cruz) DESCRIPTION:Reception follows the lecture. LOCATION:Space Telescope Science Institute,The John Bahcall Auditorium, Baltimore, MD COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12356532003e6f7af61c35e05cd42113e0196ea970@sns.ias.edu DTSTART:20090226T130000Z DTEND:20090226T130000Z SUMMARY:Princeton University Astrophysical Sciences Princeton Workshop 2009, "Construction and Evolution of the Galaxy: New Surveys and New Perspectives" (Carlos Allende-Prieto, James Binney, Joss Bland-Hawthorn, Andreas Burkert, Jim Gunn, Inese Ivans, Kathryn Johnston, Steve Majewski, Nikolas Prantzos, Tom Quinn, Michael Rich, Connie Rockosi, Ricardo Schiavon, Matt Shetrone, David Spergel, Mathias Stein, For all details: http://www.astro.princeton.edu/events/apogee/index.html) DESCRIPTION:Registration deadline is February 1. To register, please send an email to Ms. Keren Fedida (kfedida@Princeton.EDU), including name and affiliation. Please put "Workshop Registration" in the title. Go to: http://www.astro.princeton.edu/events/apogee/index.html for all details.This workshop will bring together observers and theorists in order to develop ideas on how to use future massive surveys of Galactic stellar populations in order to test model predictions for the formation of the Milky Way Galaxy. The workshop is aimed at fostering a closer dialogue between theorists and observers in order to guide both model development and survey design, thus optimizing the scientific yield of these surveys. Between 5 and 10 years from now, surveys of Galactic stellar populations will provide accurate kinematics, spatial distributions, and detailed stellar abundance patterns for 10^5 - 10^6 stars. In order for the science yielded by such superb data sets to come to full fruition, it is paramount that theorists and observers elaborate the hard tests that various models of Galaxy formation will have to be submitted to in order to deepen our understanding of the history of the Milky Way and other galaxies. Several questions should be addressed. For instance, what numerical predictions will chemodynamical models be producing five years from now that we can use to rule out different scenarios of galaxy formation? Are the yields for key elements good enough that we can use them to pose constraints on the history of star formation and IMF? How many pop III stars do we expect to detect, and where's the best place to look for them, assuming different combinations of star formation history and primordial IMF? What are the observable characteristics of Pop III stars? How will we use the kinematical and chemical data to tell what fraction of the Galactic bulge was formed by secular evolution of the disk, what fraction from merging of dwarf galaxies, what fraction from in situ star formation? How many satellites went into the formation of the Galactic Halo? The list of questions is of course much longer than this. The workshop will be structured in three sessions. The first will describe the state of the art of our knowledge of the kinematics and chemistry of the Galaxy. The second will summarize the various on-going and upcoming surveys of the Galaxy. The last session will consist of a discussion of how observers and theorists can design ways of using the expected theoretical developments in order to explore the huge amount of high quality data that will become available in the next several years. LOCATION:Princeton Center for Theoretical Science, Jadwin Hall 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123567300055f4a867196736bca4fa8e6bd1514c49@sns.ias.edu DTSTART:20090226T183000Z DTEND:20090226T183000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Theory Seminar - ADDED, "High Energy Emission from Pulsar Winds and a Possible Origin of Low Wind Magnetization" (Jonathan Arons, University of California, Berkeley) DESCRIPTION:**NOTE: if anyone wants to come but does not have a PPPL badge, please email Hantao Ji at hji@pppl.gov. ABSTRACT: Several lines of evidence suggest that relativistic winds from pulsars have flow energy dominated by kinetic energy at their termination, even though they emerge from the light cylinder as Poynting flux dominated flows. The wind sources are oblique rotators, thus the winds are ``striped'' - composed of interleaved sectors of oppositely directed ${\boldsymbol B} $ in a wide sector of latitude around the rotational equator. The electric current in the sheets separating the oppositely directed magnetic fields of the stripes, which provide the star's electric return current, may be composed of a high energy particle beam, propagating across the magnetic field in an almost unmagnetized channel of thickness comparable to the particles' formal Larmor radius. The beams in neighboring sheets have opposite propagation directions, and interact across the stripes through the long range electromagnetic field. Thus the beams are subject to an electromagnetic shear instability which has strong kinship to Weibel beam filamentation instabilities in unmagnetized plasmas. I outline the physics of this instability, apply it to the pair dominated winds from pulsars, both in the case when the return current is composed of ions or high energy positrons (angle between the angular velocity and the magnetic moment less than 90 degrees, an "acute" pulsar) and also in the electron beam return current case (angle between the angular velocity and the magnetic moment greater than 90 degrees, an "obtuse" pulsar). I argue that the instability saturates through magnetic trapping, which leads to the appearance of an anomalous resistance in the pulsar circuit, and show that this resistance can account for the reduction of the striped component of the winds' magnetic fields, through broadening of the current layers until they merge and the stripes disappear. I discuss some possible observational consequences of this magnetic dissipation in the apparently dark region between the light cylinder and the winds' termination shocks, and speculate on possible relations to dark flow regions of AGN jets. LOCATION:Princeton Plasma Physics Laboratory, Theory Seminar Room (T169) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12356766000513d97f91bbec196c8c99eb9307b24c@sns.ias.edu DTSTART:20090226T193000Z DTEND:20090226T193000Z SUMMARY:The Annual John Bahcall Distinguished Lecture - ADDED, "The Galaxy-forming Main Sequence" (Sandra Faber, University of California, Santa Cruz) DESCRIPTION: LOCATION:Goddard Space Flight Center, Greenbelt, MD, Goddard Auditorium, Building 3 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12356838008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090226T213000Z DTEND:20090226T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Toward Xray and Fusion MEMS" (Seth Putterman, University of California, Los Angeles) DESCRIPTION:Following our measurement of the 12 order of magnitude energy focusing in sonoluminescence, where long wavelength sound waves are concentrated by a bubble to produce UV light, our group has explored other systems where "catastrophic" nonlinearities produce "counterintuitive" energy concentration. Instabilities of the optical phonon spectra that lead to ferroelectricity can generate internal fields of 15.million volts per cm. So a 1cm thick crystal of LiNbO3 can be used as a generator of nuclear fusion. Predictions for crystals with internal fields that are 10 times higher will be discussed. Triboluminescence, where the surface between two interacting bodies can be a source of light, has been studied for centuries. The emission of nanosecond long 100.mW pulses of X-Ray photons from peeling tape indicates that triboluminescence can be the tail of a highly energetic process". In view of the second law of thermodynamics, these phenomena beg the question, Why does Nature produce such energy-focusing steady states and what are their theoretical constraints"? LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1235694600b62ffbf80fa380e5201a1eab500cf1d1@sns.ias.edu DTSTART:20090227T003000Z DTEND:20090227T003000Z SUMMARY:The John Bahcall Public Lecture - ADDED, "The Milky Way: Why We Need Her and How She Was Formed" (Sandra Faber, University of California, Santa Cruz) DESCRIPTION:A hundred years ago, astronomers did not know about galaxies, let alone that the Milky Way is a galaxy in a vast sea of galaxies. Today, astronomers have made remarkable progress in understanding how galaxies form in our expanding Universe and the crucial role they play in building the elements of which the planets, and even human beings, are made. Dr. Sandy Faber will discuss the formation of the Milky Way, including dramatic recent discoveries, and why this was an indispensable cosmic step in the road to life as we know it. Dr. Faber has been studying galaxy formation for over thirty years and is currently University Professor of Astronomy and Astrophysics, Lick Observatory, University of California at Santa Cruz.This Lecture is made possible by the Space Telescope Science Institute in Baltimore and the Hubble Space Telescope Program at the Goddard Space Flight Center. This program is part of their third annual John Bahcall Lecture Series. Professor John N. Bahcall (1934-2005) championed the Hubble Space Telescope from its infancy to its ultimate scientific success. He was a tireless and enthusiastic advocate of the project for over three decades-before the scientific community, before NASA, and before Congress. His leadership and commitment were seminal in making the dream of the Hubble Space Telescope a reality.The John N. Bahcall Annual Public Lecture Series was inaugurated as a commemorative event in 2006 and is organized and made possible by the Space Telescope Science Institute, Baltimore, Md. and the Hubble Space Telescope Program at the Goddard Space Flight Center, Greenbelt, Md. For more information about the February 26 John N. Bahcall Lecture at the National Air and Space Museum, visit:http://www.nasm.si.edu/events/eventDetail.cfm?eventID=1185 LOCATION:Air and Space Museum, Imax Theater, Washington, DC COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12357396003e6f7af61c35e05cd42113e0196ea970@sns.ias.edu DTSTART:20090227T130000Z DTEND:20090227T130000Z SUMMARY:Princeton University Astrophysical Sciences Princeton Workshop 2009, "Construction and Evolution of the Galaxy: New Surveys and New Perspectives" (Carlos Allende-Prieto, James Binney, Joss Bland-Hawthorn, Andreas Burkert, Jim Gunn, Inese Ivans, Kathryn Johnston, Steve Majewski, Nikolas Prantzos, Tom Quinn, Michael Rich, Connie Rockosi, Ricardo Schiavon, Matt Shetrone, David Spergel, Mathias Stein, For all details: http://www.astro.princeton.edu/events/apogee/index.html) DESCRIPTION:Registration deadline is February 1. To register, please send an email to Ms. Keren Fedida (kfedida@Princeton.EDU), including name and affiliation. Please put "Workshop Registration" in the title. Go to: http://www.astro.princeton.edu/events/apogee/index.html for all details.This workshop will bring together observers and theorists in order to develop ideas on how to use future massive surveys of Galactic stellar populations in order to test model predictions for the formation of the Milky Way Galaxy. The workshop is aimed at fostering a closer dialogue between theorists and observers in order to guide both model development and survey design, thus optimizing the scientific yield of these surveys. Between 5 and 10 years from now, surveys of Galactic stellar populations will provide accurate kinematics, spatial distributions, and detailed stellar abundance patterns for 10^5 - 10^6 stars. In order for the science yielded by such superb data sets to come to full fruition, it is paramount that theorists and observers elaborate the hard tests that various models of Galaxy formation will have to be submitted to in order to deepen our understanding of the history of the Milky Way and other galaxies. Several questions should be addressed. For instance, what numerical predictions will chemodynamical models be producing five years from now that we can use to rule out different scenarios of galaxy formation? Are the yields for key elements good enough that we can use them to pose constraints on the history of star formation and IMF? How many pop III stars do we expect to detect, and where's the best place to look for them, assuming different combinations of star formation history and primordial IMF? What are the observable characteristics of Pop III stars? How will we use the kinematical and chemical data to tell what fraction of the Galactic bulge was formed by secular evolution of the disk, what fraction from merging of dwarf galaxies, what fraction from in situ star formation? How many satellites went into the formation of the Galactic Halo? The list of questions is of course much longer than this. The workshop will be structured in three sessions. The first will describe the state of the art of our knowledge of the kinematics and chemistry of the Galaxy. The second will summarize the various on-going and upcoming surveys of the Galaxy. The last session will consist of a discussion of how observers and theorists can design ways of using the expected theoretical developments in order to explore the huge amount of high quality data that will become available in the next several years. LOCATION:Princeton Center for Theoretical Science, Jadwin Hall 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12357558001616e03dd9b3a84546844dd7ed7e1838@sns.ias.edu DTSTART:20090227T173000Z DTEND:20090227T173000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TIME CHANGED, "Nanogap Cavities in Gravitational Wave Detectors" (Guilherme Pimentel, Princeton University Graduate Student) DESCRIPTION:In a resonant-mass gravitational wave detector, the mechanical vibrations are transduced into electrical signals by means of a resonant cavity. We try to use this fact to enhance the worst characteristic of these detectors, which is its small bandwidth, and as we push the technology to the nanoscale, a interesting possibility of measuring the Casimir force arises. See hoagie list:http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=322 LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12357558001616e03dd9b3a84546844dd7ed7e1838@sns.ias.edu DTSTART:20090227T173000Z DTEND:20090227T173000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TIME CHANGED, "Observing Arcminute CMB Anisotropy with the Sunyaev-Zel'dovich Array" (Yue Zhao, Princeton University Graduate Student) DESCRIPTION:The Sunyaev-Zel'dovich Array (SZA) is an eight-element interferometer located at Caltech's Owens Valley Radio Observatory. In this talk we will describe the SZA instruments and discuss its recent 30 GHz measurement of the secondary CMB anisotropy.See hoagie list:http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=322 LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12358260003e6f7af61c35e05cd42113e0196ea970@sns.ias.edu DTSTART:20090228T130000Z DTEND:20090228T130000Z SUMMARY:Princeton University Astrophysical Sciences Princeton Workshop 2009, "Construction and Evolution of the Galaxy: New Surveys and New Perspectives" (Carlos Allende-Prieto, James Binney, Joss Bland-Hawthorn, Andreas Burkert, Jim Gunn, Inese Ivans, Kathryn Johnston, Steve Majewski, Nikolas Prantzos, Tom Quinn, Michael Rich, Connie Rockosi, Ricardo Schiavon, Matt Shetrone, David Spergel, Mathias Stein, For all details: http://www.astro.princeton.edu/events/apogee/index.html) DESCRIPTION:Registration deadline is February 1. To register, please send an email to Ms. Keren Fedida (kfedida@Princeton.EDU), including name and affiliation. Please put "Workshop Registration" in the title. Go to: http://www.astro.princeton.edu/events/apogee/index.html for all details.This workshop will bring together observers and theorists in order to develop ideas on how to use future massive surveys of Galactic stellar populations in order to test model predictions for the formation of the Milky Way Galaxy. The workshop is aimed at fostering a closer dialogue between theorists and observers in order to guide both model development and survey design, thus optimizing the scientific yield of these surveys. Between 5 and 10 years from now, surveys of Galactic stellar populations will provide accurate kinematics, spatial distributions, and detailed stellar abundance patterns for 10^5 - 10^6 stars. In order for the science yielded by such superb data sets to come to full fruition, it is paramount that theorists and observers elaborate the hard tests that various models of Galaxy formation will have to be submitted to in order to deepen our understanding of the history of the Milky Way and other galaxies. Several questions should be addressed. For instance, what numerical predictions will chemodynamical models be producing five years from now that we can use to rule out different scenarios of galaxy formation? Are the yields for key elements good enough that we can use them to pose constraints on the history of star formation and IMF? How many pop III stars do we expect to detect, and where's the best place to look for them, assuming different combinations of star formation history and primordial IMF? What are the observable characteristics of Pop III stars? How will we use the kinematical and chemical data to tell what fraction of the Galactic bulge was formed by secular evolution of the disk, what fraction from merging of dwarf galaxies, what fraction from in situ star formation? How many satellites went into the formation of the Galactic Halo? The list of questions is of course much longer than this. The workshop will be structured in three sessions. The first will describe the state of the art of our knowledge of the kinematics and chemistry of the Galaxy. The second will summarize the various on-going and upcoming surveys of the Galaxy. The last session will consist of a discussion of how observers and theorists can design ways of using the expected theoretical developments in order to explore the huge amount of high quality data that will become available in the next several years. LOCATION:Princeton Center for Theoretical Science, Jadwin Hall 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236015000814cda577887b91ea7ab600cf9801f76@sns.ias.edu DTSTART:20090302T173000Z DTEND:20090302T173000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series, "Lunch" (See the PCTS web site:, http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. March seminar speakers: Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236016800ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090302T180000Z DTEND:20090302T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "Dark Matter via Many Copies of the Standard Model" (Alex Vikman, The Center for Cosmology and Particle Physics, New York University) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. March seminar speakers: Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236016800ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090302T180000Z DTEND:20090302T180000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "Dynamical Decompactification: Why are 3 Dimensions Big?"" (Brian Greene, Columbia University) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. March seminar speakers: Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236115800c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090303T213000Z DTEND:20090303T213000Z SUMMARY:Princeton University Astronomy Colloquium, "Magnetic Self-Organization in a Laboratory Plasma with Links to Astrophysics" (Stewart Prager, Princeton Plasma Physics Lab) DESCRIPTION:In a hot toroidal plasma produced in the laboratory magnetic instabilities arise spontaneously and alter the large-scale structure of the plasma. Many of the processes that accompany this self-organization have counterparts in astrophysics. The toroidal plasma rotates and rapidly transports angular momentum in the radial direction, reminiscent of momentum transport in accretion disks. Plasma current is generated spontaneously producing a flux-conversion dynamo, possibly similar that that which might occur in astrophysical jets. Ions are heated during self-organization, similar to that observed in the solar wind. Magnetic field lines become chaotic, leading to energy transport as posited to occur in cooling flows in galaxy clusters. Mechanisms underlying all these laboratory processes are understood through detailed experiment and comparison to theory. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12361860005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090304T170000Z DTEND:20090304T170000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "A Matter of Some Gravity" (Terry Matilsky, Rutgers, The State University of New Jersey) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236187800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090304T173000Z DTEND:20090304T173000Z SUMMARY: Princeton University Wunch Talk, "Lyman Alpha Emitters" (Mark Dijkstra, Harvard University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236193200b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090304T190000Z DTEND:20090304T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "The Cosmology of Small-scale Structure" (Jim Peebles, Princeton University) DESCRIPTION:This speaker will give this Astrophysics Seminar at the usual time and location (2 pm in DRL A6) before giving the Physics Colloquium which is the same day at 4 pm. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236200400b0d035c1468b6282341a9c83136dcef2@sns.ias.edu DTSTART:20090304T210000Z DTEND:20090304T210000Z SUMMARY:University of Pennsylvania Physics/Astronomy 25th Annual Primakoff Lecture, "Finding the Big Bang" (Jim Peebles, Princeton University) DESCRIPTION:I will review how people hit on the idea that the universe may be expanding, how it was discovered that there is a fossil remnant --- thermal radiation --- from a denser hotter state of the universe, some of the other steps toward the tight web of evidence that now convincingly shows the relativistic expanding cosmology is a good approximation to what actually happened, and a few of the issues now under discussion that might lead us to a still better approximation to the large-scale nature of the universe. Colloquia are preceded by a department tea at 3:30. LOCATION:David Rittenhouse Laboratory (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12362886008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090305T213000Z DTEND:20090305T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Refraction, Scattering, and Resonance: Imaging the Secret Lives of Electrons in Nanodevices" (Eric Heller, Harvard University) DESCRIPTION:Recent advances in imaging with nanoprobes allows unprecedented insight into what electrons are actually doing in small devices. The theory of such imaging leads to new questions about the dynamics of electrons in nanodevices, including questions about refraction and time evolution in random potentials and weak or strong magnetic fields, about resonance and coherence, and about the efficacy of the single electron quasiparticle picture. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123635880022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090306T170000Z DTEND:20090306T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Why is That Moon So Hot?" (Alexander Dahlen, Princeton University Graduate Student) DESCRIPTION:Recent Cassini images of Enceladus, a small moon of Saturn, show geysers erupting from its southern pole. An extraordinary amount of power is pumped out of these fissures, nearly 60 watts per square meter, which is roughly 25 times that of the geysers at Yellowstone. Where is all this heat coming from? Heating from the sun, radioactive decay, and tidal friction seem inadequate to account for this temperature. So, a mystery from right here in our solar system: why is that moon so hot? LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123635880022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090306T170000Z DTEND:20090306T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Small Angular Scale CMB Measurements from QUaD" (Adam Hincks, Princeton University Graduate Student) DESCRIPTION:QUaD is a 2.6 m, 150 GHz telescope at the South Pole which has completed three seasons of CMB observations at resolutions of 4.6 arcminutes. The QUaD collaboration has recently released data on the angular power spectrum between 2000 < l < 3000. I will describe the experiment and summarize these results, which join a growing number of high-l CMB measurements. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236369600e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090306T200000Z DTEND:20090306T200000Z SUMMARY:Rutgers University Astrophysics Seminar , "The Role of AGN in the Great Migration of Galaxies from the Blue Cloud to the Red Sequence" (Kevin Schawinski, Yale University) DESCRIPTION:When star formation stops in blue star-forming galaxies, their stars evolve passively through intermediate colors ("the green valley") and then onto the red sequence. The high incidence of AGN in the green valley has been interpreted as evidence that AGN feedback is what suppresses star formation. Using new observations from the IRAM 30m and Swift BAT, I show that the role of AGN in the shutdown of star formation is much more complex than previously thought. Specifically, I show that the luminous AGN whose host galaxies lie in the green valley turn on at least 100 Myr after star formation turns off, and thus cannot be responsible for its suppression. On the other hand, the molecular gas that fuels star formation is destroyed extremely rapidly, possibly by injection of radiation or kinetic energy during the low-luminosity precursor AGN phase. Simulations do suggest the possibility of an early, weaker AGN phase, during which kinetic outflows might provide the most important feedback, followed roughly 100 Myr later by a more luminous AGN phase, as increasing amounts of accreting material lose enough angular momentum to fall into the black hole. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236452400490b3b327b8f6d7aef6f455b40ee5d33@sns.ias.edu DTSTART:20090307T190000Z DTEND:20090307T190000Z SUMMARY:Rutgers University Physics/Astronomy Colloquium - Irons Lecture, "Levitation, Superconductivity, and the World's Largest Magnets" (Greg Boebinger, Director, National High Magnetic Field Laboratory/ Florida State University) DESCRIPTION:The world's most powerful electromagnets are being developed at the NationalHigh Magnetic Field Laboratory (the MagLab). These electromagnets are morethan a million times stronger than the Earth?s magnetic field and are poweredby 40 million watts of electrical power. Building the electromagnetsrequires new materials because ordinary steel would burst under the stressestriggered when the high magnetic fields are confined inside the magnet.This talk will be accessible to a non-scientific audience and will include anintroduction to the interplay between electricity and magnetism, anexplanation of the important role of magnetism in the modern world, and anoverview of a few recent research achievements at the MagLab in physics,chemistry and biomedicine.Cool props will illustrate key points of the talk....and the talk willinclude a demonstration of magnetic levitation.* The MagLab is supported by the National Science Foundation, the USDepartment of Energy and the State of Florida. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123661440017b062ba88095f21ded2c995a55e8886@sns.ias.edu DTSTART:20090309T160000Z DTEND:20090309T160000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION: This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly. The venue is Peyton Hall Rm. 33 and the time is Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123670800068eb6254dadd715150721ec22312cc79@sns.ias.edu DTSTART:20090310T180000Z DTEND:20090310T180000Z SUMMARY:Astro2010 Decadal Survey, "Town Hall Meeting hosted by Princeton University" (See all details at:, http://www.astro.princeton.edu/astroevents/decadal/index.php) DESCRIPTION:See att details at: http://www.astro.princeton.edu/astroevents/decadal/index.php LOCATION:Princeton University, PCTS, Jadwin Hall, 4th floor, Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236717000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090310T203000Z DTEND:20090310T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Using Intracluster Light to Probe Galaxy Clusters" (Chris Mihos, University of Pennsylvania) DESCRIPTION: The life of a cluster galaxy is a violent one. As galaxy clusters form and evolve, their member galaxies frequently collide and interact both with other galaxies and galaxy groups, and with the cluster as a whole. Over time, gravitational tides strip stars from their host galaxies and spread them throughout the cluster to form a diffuse "intracluster light" (ICL). Using numerical simulations, we can explore the formation and structure of the ICL, and use it as a tracer of the dynamical evolution of galaxy clusters. We are also using deep wide-field imaging to search for this extremely faint light in nearby galaxy clusters, and have discovered a remarkably complex web of ICL in the Virgo cluster. LOCATION:Case Western Reserve COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236789000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090311T163000Z DTEND:20090311T163000Z SUMMARY: Princeton University Wunch Talk, "Dynamos and Common Envelopes in Evolved Stars" (Jason Nordhaus, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236789000814cda577887b91ea7ab600cf9801f76@sns.ias.edu DTSTART:20090311T163000Z DTEND:20090311T163000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series, "Lunch" (See the PCTS web site:, http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. Speakers: Daniel Baumann (Harvard University) and Tanmay Vachaspati (Case Western Reserve University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236790800ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090311T170000Z DTEND:20090311T170000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "Advances in Inflation in String Theory" (Daniel Baumann, Harvard University) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. Speakers: Daniel Baumann (Harvard University) and Tanmay Vachaspati (Case Western Reserve University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236790800ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090311T170000Z DTEND:20090311T170000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "NEC Violations in de Sitter Space" (Tanmay Vachaspati, Case Western Reserve University) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. Speakers: Daniel Baumann (Harvard University) and Tanmay Vachaspati (Case Western Reserve University). Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12367908001fb87059a736b7039ae2eb4a6e817c6d@sns.ias.edu DTSTART:20090311T170000Z DTEND:20090311T170000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series - ADDED, "A New Duality for Black Holes" (Michael Duff, Blackett Laboratory, Imperial College London) DESCRIPTION:LONG PROGRAM 2008-2009: Big Bang and Beyond Program March Seminar Series. Speakers: Daniel Baumann (Harvard University), Tanmay Vachaspati (Case Western Reserve University), and Michael Duff, Blackett Laboratory, Imperial College London. Registration is not required. Lunch is at 12:30 pm, followed by two talks beginning at 1 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236960000615e854916ee0c135d2e57e9dfa41712@sns.ias.edu DTSTART:20090313T160000Z DTEND:20090313T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TOPIC ADDED, "Extreme-Mass-Ratio Inspirals: Marbles Rolling Down into the Gravity Wells of Massive Black Holes" (Carlos Sopuerta, Consejo Superior de Investigaciones Cientficas, Institut d'Estudis Espacials de Catalunya) DESCRIPTION:Gravitational Wave Astronomy will become a reality as the new generation observatories are endowed with technology to operate at sensitivities where a substantial number of astrophysical and cosmological sources of gravitational waves become "visible". LISA, the Laser Interferometer Space Antenna, is a planned ESA-NASA space-based observatory that will operate in the low-frequency range. One of the most interesting sources for LISA is the capture and subsequent inspiral of a stellar compact object into a massive black hole, usually known as Extreme-Mass-Ratio Inspirals (EMRIs). In this talk I will describe different aspects of these systems related to their detection by LISA and their potential for scientific discovery in astrophysics, cosmology, and fundamental physics. See hoagie list at: http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=326 Order hoagie at: http://wwwphy.princeton.edu/cosmology/journalclub/hoagie/order.php?event_id=326 LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1236970800f7a4f6adaa04375467886a2189ae94e9@sns.ias.edu DTSTART:20090313T190000Z DTEND:20090313T190000Z SUMMARY:Rutgers University Astrophysics Seminar - TOPIC ADDED, "The James Webb Space Telescope and its Potential for Exoplanet Science" (Mark Clampin, Goddard Space Flight Center) DESCRIPTION:The James Webb Space Telescope (JWST) is a large aperture (6.5 meter), cryogenic space telescope with a suite of near and mid-infrared instruments covering the wavelength range of 0.6 to 28 microns. JWST's primary science goal is to detect and characterize the first galaxies. It will also study the assembly of galaxies, star formation, and the formation of evolution of planetary systems. Recent progress in hardware development for the observatory will be presented, including a discussion of the status of JWST's optical system and Beryllium mirror fabrication, progress with sunshield prototypes, and recent changes in the integration and test configuration. We also review the expected scientific performance of the observatory for observations of exosolar planets by means of transit imaging and spectroscopy and direct imaging. Finally, review the recent discovery of Fomalhaut B and implications for debris disk imaging and exoplanet detection with JWST. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237399200b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090318T180000Z DTEND:20090318T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "How Quickly Do Planets Form? Studying Protoplanetary Disk Dispersal to Constrain Planet Formation Models" (Eric Jensen, Swathmore College) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237407300492c3c79d127b2482444c69e5f950d24@sns.ias.edu DTSTART:20090318T201500Z DTEND:20090318T201500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia, "Controlling Dust Lunar Exploration Missions" (Carlos Calle, NASA Electrostatics and Surface Physics Laboratory, Kennedy Space Center) DESCRIPTION: LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237492800e4920bbe3383ef91868cb5a175af415a@sns.ias.edu DTSTART:20090319T200000Z DTEND:20090319T200000Z SUMMARY:University of Pennsylvania Physics/Astronomy Colloquia, "The Power of the Sun" (Documentary Film, For more info contact Hasiuk@physics.upenn.edu) DESCRIPTION:This one hour documentary film on solar electricity includes Nobel Laureates Walter Kohn and Alan Heeger. Narrated by award-winning British television personality John Cleese, the film is a scientific morality tale: how, starting from the most pure and basic science, through stages of brilliant applied science and engineering, there emerges a promising multi-billing dollar technology to help deal with one of the great challenges of our time: energy: finding economically realistic, clean and safe energy sources to replace diminishing cheap fossil fuels at a time when energy demands of the developing world continue to grow rapidly. LOCATION:David Rittenhouse Laboratory (209 South 33rd Street), Auditorium A1 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123764310051ac585752a9e81de72c84a3e3d7e8bd@sns.ias.edu DTSTART:20090321T134500Z DTEND:20090321T134500Z SUMMARY:6th Philadelphia Area Astronomers Meeting at The Franklin Institute, "See all details: http://www.physics.drexel.edu/research/astro/astrophilly.html" (Astronomers from the Many Area Campuses) DESCRIPTION:Registration is now open and is requested. Please see http://www.physics.drexel.edu/research/astro/astrophilly.html for more information, a tentative schedule, and the registration form. As details are finalized, they will be posted to the web page. LOCATION:The Franklin Institute, Musser Demonstration Theater COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12378240005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090323T160000Z DTEND:20090323T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "The Proposed KITE Balloon Program" (Chuck Joseph, Rutgers, The State University of New Jersey) DESCRIPTION:KITE - the Kinematical Imaging Trailblazer Experiment, is a proposed 0.75 m telescope near UV balloon mission. KITE will measure Lyman-alpha blobs in O VI and Ly-alpha emission in the range 0.9 < z < 1.46. The redshift range can be extended to 0.6 < z < 1.88 by using only one ofthe two emission lines. KITE will study outflows from AGN by 2-Dkinematical measurements of Seyfert Galaxies, using multiply ionizedspecies of O, Fe, and Ne, as well as He II. KITE is also a pathfindermission, demonstrating near-diffraction limited UV/visible imagingfor a 3-4 m telescopes on Long-Duration Balloons. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12378258004f9ccadbc8e7f2c3865600e3217fe984@sns.ias.edu DTSTART:20090323T163000Z DTEND:20090323T163000Z SUMMARY:Princeton University PICASso Interdisciplinary Computational Seminar, "Merging Black Holes, Gravitational Waves, and Numerical Relativity" (Joan Centrella, NASA Goddard) DESCRIPTION: LOCATION:Lewis Library, Room 120 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237926600c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090324T203000Z DTEND:20090324T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Measurements of Black Hole Spin with X-ray Spectroscopy" (Chris Reynolds, University of Maryland) DESCRIPTION: The past few years have seen remarkable progress in the use of X-ray spectroscopy as a probe of the immediate vicinity of accreting black holes. In particular, several techniques have been developed to measure the spin of black holes, an important quantity for our understanding of both the formation/evolution of the black hole as well as the physics of accretion. I will discuss both the theoretical basis and the observational status of black hole spin measurements. My focus will be on measurements that result from studies of the X-ray reflection spectrum from the black hole accretion disk; this technique has been applied successfully to both stellar-mass and supermassive black holes. I will finish by discussing the future of black hole spin studies and, in particular, the ability of the International X-ray Observatory to determine the spin distribution function of the local supermassive black hole population. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12379887001fb87059a736b7039ae2eb4a6e817c6d@sns.ias.edu DTSTART:20090325T134500Z DTEND:20090325T134500Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series - ADDED, "Coffee" (See the PCTS web site:, http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237989600ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090325T140000Z DTEND:20090325T140000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "TBA" (Gia Dvali, New York University) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237994100164c613d3b19b5bd1ebd995533a51e36@sns.ias.edu DTSTART:20090325T151500Z DTEND:20090325T151500Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series - TIME CHANGED, "Dark Matter via Many Copies of the Standard Model" (Alex Vikman, The Center for Cosmology and Particle Physics (CCPP), New York University) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123799860096b24b0e8da43da0d437099e6eefb382@sns.ias.edu DTSTART:20090325T163000Z DTEND:20090325T163000Z SUMMARY: Princeton University Wunch Talk - TOPIC ADDED, "What Aligned Grains Can Tell Us" (Alex Lazarian, Wisconsin, Madison) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1237998600814cda577887b91ea7ab600cf9801f76@sns.ias.edu DTSTART:20090325T163000Z DTEND:20090325T163000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series, "Lunch" (See the PCTS web site:, http://pcts.princeton.edu/pcts/bigbang/bigbang.html) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238001300ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090325T171500Z DTEND:20090325T171500Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "Dynamical Decompactification: Why are 3 Dimensions Big?" (Brian Greene, Columbia University) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238004000b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090325T180000Z DTEND:20090325T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "A National Study Assessing Student Learning in Astro 101 Courses: The Effect of Interactive Instruction" (Alexander Rudolph, California State University, Pomona) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238005800ca502206f9a54aff3dbe1546c4182e3a@sns.ias.edu DTSTART:20090325T183000Z DTEND:20090325T183000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Big Bang and Beyond Program March Seminar Series , "A Conformal Field Theory for Eternal Inflation" (Matthew Kleban, New York University) DESCRIPTION:March Seminar Series. Speakers: Matt Kleban (New York University) and Gia Dvali (New York University) and, rescheduled from March 2nd, Alex Vikman (New York University) and Brian Greene (Columbia University). Registration is not required. Coffee is at 9:45 am - followed by two talks beginning at 10 am. Lunch is at 12:30 pm - followed by two talks beginning at 1:15 pm. See the PCTS web site: http://pcts.princeton.edu/pcts/bigbang/bigbang.html LOCATION:PCTS, Jadwin Hall, 4th floor, Seminar Room 407 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238012100317da6f7a1d8cb1041f5a697ffe96f62@sns.ias.edu DTSTART:20090325T201500Z DTEND:20090325T201500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia - TOPIC CHANGED, "Helmet Protection against Traumatic Brain Injury: A Physics Perspective on this Interdisciplinary Frontier" (Eric Blackman, Department of Physics and Astronomy University of Rochester) DESCRIPTION:Traumatic Brain Injury (TBI) describes injury to the brain that is not necessarily accompanied by skull fracture and includes the full range of severities from mild concussions to permanent impairment. Head impacts from motor vehicle and sports injuries are the leading causes of civilian TBI, but TBI is also common among military personnel exposed to blast waves, with some estimates placing upwards of 20% of US soldiers affected. In general, current helmets do not effectively protect against TBI for either impacts or blasts. For impacts, this inadequacy is largely because of conceptual deficiencies in the measures of protection. For blasts, the inadequacy is due to a lack of understanding of the actual injury mechanism. In an effort toward improving both impact and blast TBI protection, I discuss recent work on rethinking impact TBI protection measures, and separately discuss recent computational work showing that skull flexure from blast waves may be a major cause of TBI. An underlying theme is to highlight the need and opportunity for a physics perspective in this subject. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12380994008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090326T203000Z DTEND:20090326T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Bringing the Cosmos to Earth: Recent Advances in Fusion and High Energy Density Science" (Edward Moses, Lawrence Livermore National Laboratory) DESCRIPTION:The use of high power lasers to demonstrate thermonuclear fusion in the laboratory and study matter at astrophysical conditions (temperatures up to 100 million degrees, densities up to 1000 gm/cc) has been actively pursued since the invention of the laser in 1960. The National Ignition Facility (NIF), a football-stadium sized laser at the Lawrence Livermore National Laboratory (LLNL) in Livermore, CA, is the latest such laser facility. NIF is complete and will in 2010 commence experiments designed to demonstrate for the first time net energy production from thermonuclear fusion, the process that powers the stars. NIF will also investigate fundamental science questions involving supernova hydrodynamics, planetary interiors, and the behavior of matter at extreme conditions generally. This talk will cover these topics and describe options for clean, sustainable energy that will be made feasible by the demonstration of fusion ignition at NIF. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123816960022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090327T160000Z DTEND:20090327T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Detecting Gravitational Waves with Pulsars" (Tom Essinger-Hileman, Princeton University) DESCRIPTION:Efforts to detect low-frequency gravitational waves by measuring millisecond pulsar timing show promise of making a direct detection in the nanoHertz band in the next five to ten years. A stochastic gravitational-wave background would be measurable as a correlation between fluctuations in pulsar timing residuals from widely-spaced pulsars. This stochastic background could be produced in the early universe or by merging massive black holes at the centers of galaxies. I will focus on efforts by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) to measure this background using the Arecibo Radio Telescope and the Green Bank Telescope. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238180400e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090327T190000Z DTEND:20090327T190000Z SUMMARY:Rutgers University Astrophysics Seminar , "Insights into Galaxy Evolution from Deep Spitzer Far Infrared Surveys" (Minh Huynh, California Institute of Technology) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123842880017b062ba88095f21ded2c995a55e8886@sns.ias.edu DTSTART:20090330T160000Z DTEND:20090330T160000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION:This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly. The venue is Peyton Hall Rm. 33 and the time is Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238531400c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090331T203000Z DTEND:20090331T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Strong Gravitational Lensing as a Universal Tool: Near - Far, Light - Dark, Micro - Macro" (Joachim Wambsganss, Zentrum for Astronomie der Universitat Heidelberg) DESCRIPTION:A whole suite of strong gravitational lens phenomena have been investigated since the discovery of the first double quasar in 1979: multiple quasars, giant luminous arcs, quasar microlensing, galactic microlensing, Einstein rings, and extrasolar planets. Today strong lensing is a booming part of astrophysics and cosmology, covering more than 20 orders of magnitude in mass. A number of recent applications will be presented and discussed, including lensing results on the physics of quasars, lensing constraints on dark matter in galaxies, and lensing discoveries oflow-mass exoplanets. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238603400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090401T163000Z DTEND:20090401T163000Z SUMMARY: Princeton University Wunch Talk, " Supermassive Black Holes in the Hierarchical Universe: Observations and a Simple Model" (Yue Shen, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238608800b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090401T180000Z DTEND:20090401T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "Vector Fields as Dark Energy" (Slava Mukhanov, Ludwig-Maximilians-Universitat, Munchen) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12387042008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090402T203000Z DTEND:20090402T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Collective Animal Behaviour: Theoretical Speculations and Empirical Groundings" (Irene Giardina, National Research Council (CNR) - Istituto Nazionale per la Fisica della Materia (INFM) and University of Roma La Sapienza) DESCRIPTION:Collective behaviour is a widespread phenomenon in biological systems, at very different scales and levels of complexity. Bird flocks gathering over the roost at dusk, fish schools milling under water, swarms of insects, trails of foraging ants, herds of mammals, are only a few examples, which are familiar to many of us. This self-organization is very general and transcends the detailed nature of the individual constituents, making it a subject of great interdisciplinary interest and has triggered much attention in biology, physics, control theory and robotics. In this talk I will describe how models and empirical data have improved our understanding of animal collective and outline some methodological and conceptual issues relevant for future perspectives in this field. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123877440093560b76cf9374866ba655185e4a46f3@sns.ias.edu DTSTART:20090403T160000Z DTEND:20090403T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - ROOM CHANGE, "Axions in Cosmology" (Katie Mack, Princeton University) DESCRIPTION: LOCATION:Jadwin Hall, Room 111 (DIFFERENT ROOM) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1238785200e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090403T190000Z DTEND:20090403T190000Z SUMMARY:Rutgers University Astrophysics Seminar , "Chemical Evolution in Star-Forming Galaxies" (John Moustakas, New York University) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12390336005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090406T160000Z DTEND:20090406T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "The High Redshift Zoo: Galaxies in the Young Universe" (Peter Kurzcynski, Rutgers, The State University of New Jersey) DESCRIPTION:At present there is no complete understanding of galaxy formation and evolution. Many of the galaxies observed at high redshift are dramatically different from those of today. I will review some of the taxonomy of these galaxies as discussed in current literature, and focus on the potential for multiwavelength observations to better understand their properties and the relationships between them. I will discuss ongoing analyses of the far infrared through radio wavelength emission of several of these galaxy types, and their implications for star formation and galaxy evolution. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123903360017b062ba88095f21ded2c995a55e8886@sns.ias.edu DTSTART:20090406T160000Z DTEND:20090406T160000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION:This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly. The venue is Peyton Hall Rm. 33 and the time is Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239136200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090407T203000Z DTEND:20090407T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Disks, Interactions, and Explosions in Massive Star Formation" (John Bally, University of Colorado) DESCRIPTION:Massive stars tend to form in groups at the centers of high-pressure molecular cloud cores that give birth to clusters where they undergo a rich variety of dynamical interactions with sibling stars and dense gas. The resulting non-hierarchical multiples tend to decay into tight binaries plus ejected high-velocity stars which are surprisingly common. I will present laser-guide star adaptive-optics imaging of the explosive Orion Molecular Core 1 outflow powered by massive stars dynamically ejected from their parent core only 500 years ago. I will show evidence for a pulsed, precessing jet emerging from Cepheus A where the circumstellar disk of a moderate-mass star may have assisted in the capture of a sibling star into an eccentric, non-coplanar orbit. These results illustrate some of the complexities of massive star formation and cluster birth. They provide insights into the astrophysics of starbursts, super-star clusters, active galactic nuclei, and the birth of plane tary systems. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239220800e4920bbe3383ef91868cb5a175af415a@sns.ias.edu DTSTART:20090408T200000Z DTEND:20090408T200000Z SUMMARY:University of Pennsylvania Physics/Astronomy Colloquia, "Finding the Gas and Magnetic Fields that Make Galaxies" (Arthur Wolfe, Center for Astrophysics & Space Sciences, University of California, San Diego) DESCRIPTION:Colloquia are preceded by a department tea at 3:30. Damped Lyman-alpha absorption systems (DLAs) are a population of gas layers that dominate the neutral-gas content of the Universe in the redshift interval z=[0,5] and serve as neutral-gas reservoirs for star formation in early galaxies. I discuss evidence for the evolution of neutral-gas content with time and its implications for the cycling of gas through stars at high redshifts. I then focus on our recent measurement of a magnetic field in a DLA with redshift z=0.692 using Zeeman splitting of the redshifted 21 cm absorption line. The absorbing gas exhibits a strong magnetic field, low metallicity, low electron fraction, and quiescent kinematics. These conditions pose a challenge for understanding the origin of the magnetic field. LOCATION:David Rittenhouse Laboratory (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12393792003bfa679004d733190654c82765a6229f@sns.ias.edu DTSTART:20090410T160000Z DTEND:20090410T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - ADDED, "Simulations of the Gravity Dual in an AdS/CFT Correspondence" (Hans Bantilan, Princeton University Graduate Student) DESCRIPTION:The AdS/CFT correspondence conjectures that a gauge theory admits a dual gravity description in a negatively curved spacetime. In particular, a heavy ion collision described by QCD has been conjectured as dual to a black hole collision in 5-dimensional anti-de Sitter (AdS) space. BH-BH collisions have received a lot of attention in the field of numerical relativity, in the context of gravitational waves generated in their inspiral phase and upon merger. By taking advantage of techniques in numerical relativity to simulate 5-dimensional AdS, it is hoped that we can learn a bit more about heavy-ion physics, and perhaps more about the AdS/CFT correspondence in the process. I will describe steps that are being taken in this direction, first focusing on motivations, and then on preliminary simulations. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12393792003bfa679004d733190654c82765a6229f@sns.ias.edu DTSTART:20090410T160000Z DTEND:20090410T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - ADDED, "The New Quasar Luminosity Function and Their Evolution" (Mihail Amarie, Princeton University Graduate Student) DESCRIPTION:In this talk I am going to present the quasar luminosityfunction based on the corrected bolometric luminosity function of thequasars and I will also try to point out its peculiarities and how theyconstrain the quasar evolution models. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239390000f7a4f6adaa04375467886a2189ae94e9@sns.ias.edu DTSTART:20090410T190000Z DTEND:20090410T190000Z SUMMARY:Rutgers University Astrophysics Seminar - TOPIC ADDED, "Star Formation in the Local Universe" (Luciana Bianchi, Johns Hopkins University) DESCRIPTION:Ultraviolet surveys of the sky are obtained by the Galaxy Evolution Explorer (GALEX), to address questions such as the history of star formation in the recent Universe. They provide unprecedented sky maps in two UV bands and catalogs of UV sources, which probe and characterize with great sensitivity several classes of astrophysical objects, including low-redshift QSOs, and hot white dwarfs in the Milky Way. A dedicated survey of nearby galaxies offers a most comprehensive, deepest map of their young stellar populations, shedding new light on the process of star formation and its modalities in different environments. The UV data, combined with IR and optical data, provide a complete account of the current SF, obscured and unobscured by dust, down to extremely low SF rates, over a variety of morphologies and conditions, and reveal unexpected results. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12396384005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090413T160000Z DTEND:20090413T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "Gas Mass Fractions and Star Formation in Blue-Sequence E/S0s" (Lisa Wei, University of Maryland) DESCRIPTION:Recent work has identified a population of low-mass, fieldellipticals and S0s that occupy the ``blue sequence'' in colorvs. stellar mass parameter space, where spiral galaxies typicallyreside. While some seem to be young merger remnants destined to fadeonto the red sequence, commonly associated with E/S0s, many appear tobe settled products of long-ago mergers that are now rebuildingdisks. We present observations of atomic gas in blue- and red-sequenceE/S0s. Based on the size of the atomic gas reservoir, stellar masscontent, and current star formation rate, we probe the currentevolutionary state as well as the extent of morphologicaltransformation possible in the future for blue-sequence E/S0s. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239741000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090414T203000Z DTEND:20090414T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Bringing the Supermassive Black Hole at the Center of Our Galaxy and its Environs into Focus with Laser Guide Star Adaptive Optics" (Andrea Ghez, University of California, Los Angeles) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12397536008d7b3b11d181d49211d7dcf0a080d292@sns.ias.edu DTSTART:20090415T000000Z DTEND:20090415T000000Z SUMMARY:Amateur Astronomers Association of Princeton (AAAP) - ADDED, "The Content Of The Universe" (Neta Bahcall, Princeton University) DESCRIPTION:For more details go to:http://www.princetonastronomy.org/ LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239813000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090415T163000Z DTEND:20090415T163000Z SUMMARY: Princeton University Wunch Talk, "The Origin of Dwarf Spheroidal Galaxies" (Elena D'Onghia, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:The most dark matter dominated galaxies known are the dwarf spheroidals, but their origin is still uncertain. The recent discovery of ultra-faint dwarf spheroidals around the Milky Way further challenges our understanding of how low-luminosity galaxies originate and evolve because of their even more extreme paucity of gas and stars relative to their dark matter content. By employing numerical simulations we propose that interactions between galaxies can excite a gravitational process that drives their evolution into spheroidals in groups of dwarfs before they are accreted into large systems like the Milky Way. This effect, which is gravitational in nature, is distinct from other mechanisms which have been proposed up to now to explain the origin of dwarf spheroidals, such as merging, galaxy-galaxy harassment and more general heating processes, or tidal and ram pressure stripping. This new process can account for the observed properties of the dwarf galaxies including their morphologies, kinematics, and extreme high ratios of dark to luminous matter. Under some circumstances it can lead to even more efficient stripping of the baryons, yielding objects that resemble the ultra-faint dwarfs and ultimately systems that are nearly completely dark. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239818400b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090415T180000Z DTEND:20090415T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "The Stellar Population Synthesis Technique" (Charlie Conroy, Princeton University) DESCRIPTION:The SPS technique is deceptively simple. Relying on stellar evolution calculations, stellar spectral libraries, and dust models, practitioners of SPS aim to convert the observed spectral energy distributions of galaxies into physical properties. Knowledge of these physical properties, which range from stellar masses to star formation rates and metallicities, are essential for understanding the formation and evolution of galaxies. The SPS framework thus provides the fundamental link between theory and observations. Despite its importance, a systematic investigation of the uncertainties in SPS is lacking. In this talk I will describe ongoing work exploring the panoply of uncertainties in SPS, including uncertainties in stellar evolution, dust models, and initial mass functions, amonst others, and their propagation into the derived physical properties of galaxies. I will also briefly outline future work aimed at the creation and public release of a comprehensive, robust catalog of physical properties of galaxies from the final data release of the Sloan Digital Sky Survey. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239822000b92b3c7266d6c7d94d901b96e1a8dde1@sns.ias.edu DTSTART:20090415T190000Z DTEND:20090415T190000Z SUMMARY:Princeton University Department of Astrophysical Sciences Special Seminar - ADDED, "HSC: the (Only?) Future of Ground Based Discoveries of High-z SNe -- Prospects for Cosmology, SN Rates, and the High-z SFR" (Dovi Poznanski, University of California, Berkeley) DESCRIPTION: LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123982830061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20090415T204500Z DTEND:20090415T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "Megamasers, the Hubble Constant, and Dark Energy" (Jim Braatz, National Radio Astronomy Observatory) DESCRIPTION:Measuring precise distances to galaxies is a notoriously difficult problem,but one of fundamental importance. By measuring distances to relativelynearby galaxies (within a couple hundred megaparsecs) we can determine thelocal expansion rate of the universe, the Hubble constant. A precise valueof the Hubble constant, as a complement to observations of the CosmicMicrowave Background, would provide critical constraints on the nature ofdark energy, the mysterious repulsive force that dominates the total energybudget of the universe. Currently, the best measurements of the Hubbleconstant are based on photometric observations and are limited by systematicuncertainties at about the 10% level. I will describe a new, geometrictechnique for measuring distances to galaxies that could lead to a much moreprecise measurement of the Hubble constant. The technique is based on radioobservations of water vapor masers circling the supermassive black holes incertain nearby galaxies. In addition to providing a distance, theobservations I will describe also provide the only means of mapping,directly, accreting gas within a parsec of a galaxy's central black hole. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12399138008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090416T203000Z DTEND:20090416T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "The Fermi Gamma-ray Space Telescope: A New View of the High Energy Universe" (Peter Michelson, on behalf of the Fermi LAT Collaboration; the Fermi Mission Team Kavli Institute of Particle Astrophysics and Cosmology; and Department of Physics, Stanford University) DESCRIPTION:The Fermi Gamma-ray Space Telescope, launched by NASA on June 11, 2008, is providing an important window on a wide variety of high-energy phenomena, including pulsars, black holes and active galactic nuclei; gamma-ray bursts; the origin of cosmic rays and supernova remnants; and searches for hypothetical new phenomena such as supersymmetric dark-matter annihilations and exotic relics from the Big Bang. This talk will describe results obtained during the first six months of the first year sky-survey phase of the Fermi mission. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:123998400022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090417T160000Z DTEND:20090417T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Is There a Fully Relativistic Definition of a Global Positioning System? (Yes.)" (Albert Tarantola, Universite de Paris VI) DESCRIPTION:Many relativistic corrections are applied to the GPS system, and their orders of magnitude are well-known. Unfortunately, the current paradigm uses relativity only as a correction to be applied to Galilean physics. We believe that there is a way to define and understand a positioning system (inside General Relativity). Our work has demonstrated, using fundamental principles, that there is only one coordinate system in space-time that is physically implementable, fully relativistic and immediate: if four clocks broadcast their (proper) time signals, any observer in space-time simultaneously receives, at any point of his space-time trajectory, four times, one sent by each clock. These four times are the only "good" space-time coordinates. From them, the positioning problem can be stated (and solved). I will briefly present some basic theorems, and the "practical" way for (relativistically) running a GPS system. Extensions to more general problems (basic gravimetry, detection of gravitational waves, etc.) will be mentioned. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1239994800e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090417T190000Z DTEND:20090417T190000Z SUMMARY:Rutgers University Astrophysics Seminar , "Winds, Bubbles and Supernovae" (Vikram Dwarkadas, University of Chicago) DESCRIPTION:Mass loss from stars is a ubiquitous process. Massive stars (> 8 solar masses) lose a substantial amount of their initial mass, which can create complex structures such as wind-blown bubbles surrounding the star. When these stars explode as supernovae (SNe), the resultant shock wave interacts with this surrounding medium, and not with the interstellar medium, for a substantially long time. Evolution within the ambient medium can significantly alter the SN evolution from the conventional "textbook" phases that are usually studied. In this talk we will explore, with the help of numerical simulations, the formation of the ambient medium around massive stars of various initial mass. Furthermore we will investigate the interaction of the SN shock wave with this medium. We will characterize the signatures of this interaction, and its observational manifestations, with several examples, including but not limited to the famous SN 1987A. In recent times it is becoming apparent that some massive stars undergo an episode of significant mass loss just prior to their demise, perhaps within the last hundreds of years of their existence. We will also explore SNe from such events and what these observations reveal. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12402432005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090420T160000Z DTEND:20090420T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "Testing CDM with IR Flux Ratios in Galaxy Lenses" (Ross Fadely, Rutgers, The State University of New Jersey) DESCRIPTION:Modern N-body simulations unanimously predict the existing of numerous "satellite" subhalos around galaxies. In the picture of hierarchical galaxy formation, the number and properties of these satellites plays an important role in galaxy evolution. Using multi-wavelength datasets, gravitational lensing can be used as a tool to probe this subhalo population. I will present our recent observational campaign using Gemini North to test CDM substructure. While results are preliminary, our initial findings indicate that lensing can powerfully constrain subhalo properties at cosmological distances. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124024320017b062ba88095f21ded2c995a55e8886@sns.ias.edu DTSTART:20090420T160000Z DTEND:20090420T160000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION:This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly. The venue is Peyton Hall Rm. 33 and the time is Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124025580011c5b613878ae6cca75dd4e521dd52ca@sns.ias.edu DTSTART:20090420T193000Z DTEND:20090420T193000Z SUMMARY:Princeton University Department of Astrophysical Sciences Special Seminar, "The Many Facets of Time-Domain Astronomy: From Brown Dwarfs and Planets to Stellar Eruptions and Explosions" (Edo Berger, Harvard University) DESCRIPTION:The study of variable and transient phenomena is one of thekeyfrontiers in modern astronomy. It is driven by our understanding thatthese events result from a rapid and violent release of energy andtherefore provide a unique window into extreme physical conditions, thelives and deaths of massive stars, and the diverse behavior of compactobjects. In this talk I will discuss three new classes of transient andvariable events that span a wide range of origins and behaviors: short-duration gamma-ray bursts, a class of mysterious massive stareruptions, and magnetic bursting in brown dwarfs. While these eventsaredistinct, the same observational techniques (and some of the same basicphysics) are required for a complete understanding of their origin. Inaddition, their transient behavior provides new insight into theproperties of the underlying systems (compact object binaries, massivestars, brown dwarfs). I will describe recent progress in the study ofthese objects, drawing particular attention to how upcoming optical andradio time-domain surveys can expand our knowledge of these and relatedobjects. LOCATION:Peyton Hall, Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12403440000294d8953157d8756b73d56f770b0c53@sns.ias.edu DTSTART:20090421T200000Z DTEND:20090421T200000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar SPECIAL DATE - LOCATION UPDATED, "Issues in Gravitational Lensing: Carrying Coal to Newcastle" (Scott Dodelson, Fermilab) DESCRIPTION:Weak lensing has emerged as a powerful cosmological tool for probing dark energy and dark matter. After reviewing the standard argument for how this will work, I point out several twists: times when we think we're measuring the coveted shear but are actually sensitive to something else, and times when we're not thinking about lensing at all but it gets in the way. I'll close by proposing a way of turning these lemons into lemonade. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 4E19 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240345800c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090421T203000Z DTEND:20090421T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Exploiting the Two-body Problem in General Relativity" (Scott Hughes, Massachusetts Institute of Technology) DESCRIPTION: A simple problem in Newtonian gravity, the motion of two bodies about one another is far more challenging in general relativity. Motivated largely by the anticipated importance of compact binaries as gravitational-wave sources, many years of effort have produced a suite of tools for modeling binaries in general relativity. This work has culiminated in the celebrated recent breakthroughs in numerical relativity allowing us to model essentially arbitrary compact binary systems. In this talk, I will present an overview of what we have learned from GR's two-body problem, focusing in particular on how unique aspects of general relativity flavor the gravitational waves which binaries generate. I will also describe how measuring these waves and exploiting these models will allow us to study compact bodies, especially black holes, in exquisite detail. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240354800dda7ea4f62b65913a6c8885f725e521d@sns.ias.edu DTSTART:20090421T230000Z DTEND:20090421T230000Z SUMMARY:The Franklin Institute Awards - ADDED, "The Cosmic Origin of the Human Species Panel Discussion" (Sandra Faber and other panelists, University of California Observatories/Lick Observatory, University of California, Santa Cruz) DESCRIPTION:Modern cosmology provides a scenario for the evolution of the Universe, which begot our Galaxy, and which in turn provided the right environment to form our Sun, Solar System, and Earth. Were these events inevitable or improbable? Is our habitable Earth a rare object or common? What do the recent discoveries of planets around other stars say about the likehood of intelligent life elsewhere? The panel will speculate on these questions, including the long-term prospects for intelligent life in our Cosmos. Panel discussions featuring Sandra Faber will be moderated by Derrick Pitts, Chief Astronomer of the Franklin Institute. Panelists also include Michael Fall, Space Telescope Science Institute, Johns Hopkins University; Jeremiah Ostriker, Princeton University; Scott Tremaine, Institute for Advanced Study; and David Weinberg, Ohio Station University. This event is free and open to the public. Franklin Theater, The Franklin Institute, 222 North 20th Street, Philadelphia, PA 19103. Reservations: 215-448-1329, awards@fi.edu LOCATION:The Franklin Institute, Franklin Theater COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240416000c32261256ea849ab58d6a4b2f3f3afc8@sns.ias.edu DTSTART:20090422T160000Z DTEND:20090422T160000Z SUMMARY:Princeton University Geoscience Seminar - ADDED, "The Climate Dynamics of Titan" (Jonathan L. Mitchell, Institute for Advanced Study) DESCRIPTION:Titan's atmosphere is laden with methane vapor, the equivalent of a 5 meter global ocean. Methane is near its triple point at Titan's surface conditions, and grand displays of convective methane storms are observed. I will demonstrate how the coupling of methane thermodynamics to Titan's large-scale circulation limits cloud coverage and duration, defines climate zones, and damps the seasonal cycle. Cassini and ground-based observations are beginning to reveal these effects in the seasonality of methane clouds and the latitudinal distribution of surface morphologies. Several mysteries deserve further investigation including mechanisms sustaining the observed pattern of zonal winds and the long-term evolution of the methane reservoir. I will briefly discuss ongoing work aimed at understanding the dynamics giving rise to superrotation in Titan's atmosphere, and developing ideas regarding the circulation of extrasolar planetary atmospheres. LOCATION:Guyot Hall, Room 220 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240417800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090422T163000Z DTEND:20090422T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Michael Blanton, New York University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124042860073b890374e539a3670855b9a1064b748@sns.ias.edu DTSTART:20090422T193000Z DTEND:20090422T193000Z SUMMARY:University of Pennsylvania Physics/Astronomy Colloquia - SPECIAL COLLOQUIUM, "Galaxy Evolution Over the Last Two-Thirds of Cosmic Time" (Sandra Faber, University of California, Santa Cruz/Lick Observatory) DESCRIPTION:Major surveys have now thoroughly sampled the galaxy population at redshifts below z ~ 1.4. This talk will summarize broadly what has been learned about galaxy evolution over these epochs, focussing on results from DEEP2 and Sloan. The main conclusion is that galaxy evolution is highly correlated with stellar mass, which in turn is plausibly correlated with dark halo mass. A useful working model is that galaxy evolution is driven principally by halo mass and that the star formation rate is given uniquely by halo mass at each redshift over these epochs. LOCATION:David Rittenhouse Laboratory (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240513200103c9b7ac100c42a757655060b97fe47@sns.ias.edu DTSTART:20090423T190000Z DTEND:20090423T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - DATE CHANGED / TIME UPDATED, "The Progenitors Of Type Ia Supernovae" (Laura Greggio, Observatory of Padova) DESCRIPTION:Type Ia Supernovae are important contributors of iron and energy to the interstellar medium, as well as crucial cosmological probes. Understanding the nature of SNIa progenitors is fundamental for many astrophysical issues, due to the impact on the rate of their explosions as their parent stellar systems evolve, and because of the possible different characteristics of low and high redshift events. In this talk, starting from the major observational evidences, I will illustrate various evolutionary channels potentially leading to Type Ia SN events, and discuss their ability to meet the observational constraints. The second part of the talk will be devoted to the distribution of the delay times of SNIa progenitors, which has important implications for the evolution of galaxies. Theoretical models and empirical determinations will be illustrated and discussed. Finally, I will focus on the relation between the rate of SNIa events and the properties of the parent stellar population as a mean to derive clues on the progenitors. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A2 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12405186008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090423T203000Z DTEND:20090423T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Imaging the Earth's Interior Based Upon Recent Advances in Theoretical & Computational Seismology" (Jeroen Tromp, Geosciences and Applied and Computational Mathematics, Princeton University) DESCRIPTION:Using modern numerical algorithms and computers, today's seismologists can accurately and efficiently simulate wavefields generated by earthquakes. This talk will discuss how to harness these capabilities by using remaining differences between observed wavefields and corresponding simulations to enhance the quality of 'maps' of the Earth's interior and to image Earth structure on all scales. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124058880022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090424T160000Z DTEND:20090424T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Flows on 100 Mpc/h Scales and the Amplitude of Density Fluctuations in the Universe" (Hume Feldman, University of Kansas) DESCRIPTION:The bulk flow is a sensitive probe of matter density fluctuations on large scales. We introduce a new method of calculating bulk flow moments where velocities are weighted to give an optimal estimate of the bulk flow of an idealized survey, with the variance of the difference between the estimate and the actual flow being minimized. These ``minimum variance'' estimates can be designed to estimate the bulk flow on a particular scale with minimal sensitivity to small scale power, and are comparable between surveys. We compile all major peculiar velocity surveys and estimate the bulk flow on 100 Mpc/h scales to be ~400 km/s which indicates that there are significant density fluctuations on very large scales. The WMAP5-normalized LCDM cosmology, predicts a r.m.s. velocity of ~100 km/s. The discrepancy in the amplitude of cosmological density fluctuations is not confined only to large scales. The estimates of the fluctuations on 8 Mpc/h scales (sigma_8) also vary considerably between various probes. However, different estimators examine the value on different cosmological scales and do not take into account the nonlinear evolution of the parameter at late times. We show that estimates of the fluctuations amplitude derived from cosmic flows are systematically higher than those inferred at early epochs because of nonlinear evolution at later times. Here we derive corrections to the value of sigma_8 from both perturbation theory and numerical simulations and compare amplitudes after accounting for this effect. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12408480005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090427T160000Z DTEND:20090427T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "Lyman Alpha Emitting galaxies at z = 2.1 in ECDF-S: Building Blocks of the Milky Way?" (Lucia Guaita, Pontificia Universidad Catolica de Chile) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1240950600c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20090428T203000Z DTEND:20090428T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Testing Gravity Throughout the Universe and Around Black Holes" (Avi Loeb, Harvard University) DESCRIPTION:I will describe two frontiers that will likely provide new testing grounds for the theory of gravity.The first frontier holds the potential for measuring the gravitational growth of density fluctuations (in the weak field regime) throughout most of the observable volume of the Universe by mapping the distribution of cosmic hydrogen before, during and after the epoch of reionization. The second frontier includes new tests of the theory of gravity in the strong field regime, based on direct imaging of the silhouette of nearby black holes (SgrA* and M87) as well as observing electromagnetic signatures from the coalescence of black hole binaries at cosmological distances. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124102260096b24b0e8da43da0d437099e6eefb382@sns.ias.edu DTSTART:20090429T163000Z DTEND:20090429T163000Z SUMMARY: Princeton University Wunch Talk - TOPIC ADDED, "Explosions and Jets from Accreting White Dwarfs" (Jennifer Sokoloski, Columbia University) DESCRIPTION:Accreting white dwarfs can produce jets, just like young stellar objects, X-ray binaries, and active galactic nuclei. Since jets from white dwarfs share many of the physical characteristics of the non-relativistic jets from young stellar objects, while displaying phenomena typically associated with relativistic jets from X-ray binaries, they provide a bridge between non-relativistic and relativistic collimated outflows. Accreting white dwarfs also erupt -- as novae and, in some cases, type Ia supernovae. I will review the emerging field of study of jets from accreting white dwarfs, with an emphasis on new discoveries such as the first jet from a dwarf nova, non-relativistic jets that power synchrotron lobes, and jets that are triggered by nova explosions. I will also discuss some possible implications of bipolar outflows for novae and type Ia supernovae. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12410280009e5b73fe8148579ebb562ad977b4e6e8@sns.ias.edu DTSTART:20090429T180000Z DTEND:20090429T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - TOPIC ADDED, "The Connection of High-z Galaxy Evolution with Environment and AGN Activity" (Jeff Newman, University of Pittsburgh) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124103790061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20090429T204500Z DTEND:20090429T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "A National Study on the Effect of Interactive Learning in the Astro 101 Classroom" (Alexander Rudolph, California State Polytechnic University, Pomona) DESCRIPTION:Years of physics education research, including the seminal study byHake*, has established that lecture alone is not the best way to helpstudents grasp the fundamental concepts of introductory physicscourse. Interactive techniques, such as Think-Pair-Share questions,Lecture Tutorials, and Ranking Tasks, have been shown to increasestudents' gains (as measured, e.g., by the Force Concept Inventory),over traditional lecture-only courses. However, up to this point,similar large studies have not been done in astronomyWe have conducted a national research study designed to determine theeffect of interactive learning techniques on students' conceptuallearning in general education astronomy courses (Astro 101). Nearly4000 students enrolled in 69 sections of Astro 101 taught by 36different instructors at 31 institutions around the country, completed(pre and post-instruction) the Light and Spectroscopy ConceptInventory (LSCI). The LSCI is a valid and reliable multiple-choice,research-based instrument designed to test students? understanding oflight and spectroscopy, two of the central topics of all Astro 101classes. The study confirms the importance of the use of interactivelearning techniques in the astronomy classroom to achieve the maximumgain in student understanding of these topics, and by extension allthe topics in such courses. However, we also find that the use ofinteractive learning strategies is not sufficient alone to achievehigh student gain. Successful implementation of interactiveinstructional strategies is essential, and the instructor plays acritical role in the process of helping students achieve such highgains.The presentation will make use of Classroom Response Systems (aka"clickers"), thereby demonstrating one of the interactive learningtechniques used by some instructors in the study, and allowingparticipants to experience interactive learning firsthand.*Richard R. Hake, Interactive-Engagement versus Traditional Methods: A Six-Thousand-Student Survey of Mechanics Test Data for Introductory Physics Courses,? Am. J. of Phys. 66 (1), 64-74 (1998). LOCATION:Physics Lecture Hall COMMENT:Host: Jerry Sellwood URL: END:VEVENT BEGIN:VEVENT UID:12411180004cb7a394c1cfd1fdf64c9018aa7c4fcf@sns.ias.edu DTSTART:20090430T190000Z DTEND:20090430T190000Z SUMMARY:University of Pennsylvania Astrophysics Talk - ADDED, "Do Halo Mergers Trigger Quasars?" (Jorge Moreno, Haverford College) DESCRIPTION:Understanding the growth of supermassive black holes at the center of mostgalaxies is a quite interesting challenge today. It is believed thattheir growth is enhanced by galaxy mergers, in which cold gas is driven tothe center of the remnant. We present an analytic model where quasars aretriggered by major mergers of dark matter haloes. Theoretical merger ratesbeyond the standard EPS prescription, and compatible with the MillenniumSimulation, are used. The impact of mergers on the luminosity functionand quasar clustering is discussed.Collaborators: Francesco Shankar (MPA), David H. Weinberg (Ohio State) &Ravi K. Sheth (U. Penn) LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 3W2 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124119360022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090501T160000Z DTEND:20090501T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Point Sources in CMB Observations" (Ryan Fisher, Princeton University Graduate Student) DESCRIPTION:I will present an overview of point sources as observed inCMB observations. This will include a description of the primary types ofsources observed including a description of some of the basic radiationgeneration mechanisms. I will also present some of the results ofexaminations of point sources in the WMAP and ACBAR experiments. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124119360022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090501T160000Z DTEND:20090501T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, " Evidence for the Missing Baryons in the Angular Correlation of the Diffuse X-ray Background" (John Appel, Princeton University Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1241204400e0b26d86adc928bd8ed31006d9430308@sns.ias.edu DTSTART:20090501T190000Z DTEND:20090501T190000Z SUMMARY:Rutgers University Astrophysics Seminar , "Clues to the Building Blocks of the Universe from Old Stellar Populations and their Chemical Compositions" (Inese Ivans, Carnegie Observatories & Princeton University) DESCRIPTION:In predictions from Lambda-CDM cosmology, the Milky Way and galaxies like it formed from the hierarchical merging of smaller galaxies. Observations of the colours and motions of stars have uncovered streams that show our Galaxy is still accumulating stellar systems today. However, Galactic history cannot be disentangled with this data alone. Spatial groupings of stars can dissipate over time, and even velocity phase-space signatures become difficult to detect against a background of stars with a very inhomogeneous distribution of velocities and orbital planes. But, stellar populations arising from different environments can possess varied nucleosynthetic histories, histories that can be inferred from stellar chemical compositions. The relics of early star formation and chemical enrichment in the Galaxy are preserved in observed stellar chemical abundance patterns, providing both clues and constraints to possible formation mechanisms of the elements and the various stellar generations comprising the Milky Way. In this talk I will present recent results of studies of stars in some of the oldest populations of the Local Group: nearby satellite galaxies, both dwarf and ultra-dwarf, as well as those of stars in Galactic globular clusters and the field. The chemical compositions of these objects are powerful probes of stellar evolution, star formation histories, mass functions, and the construction of galaxies. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124145280017b062ba88095f21ded2c995a55e8886@sns.ias.edu DTSTART:20090504T160000Z DTEND:20090504T160000Z SUMMARY:Princeton University/IAS Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION: This Spring we are reviving the Monday Planet Lunch,and will hold it bi-weekly. The venue is Peyton Hall Rm. 33 and the time is Noon. Graduate students are particularly encouragedto attend. The format will be informal and inclusive,spanning at a minimum exoplanets, the solar system,and astrobiology. Moreover, we plan on discussingmultiple topics each time we meet, and not to tethera lunch to one organized presentation each sitting.The purpose is to foster wide-ranging andcross-fertilizing interaction and to keep the localcommunity up to date on developments across thespectrum of associated activities. Hope to see you there! Regards, Adam Burrows, Jonathan Mitchell, and Ed Turner LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12414528005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20090504T160000Z DTEND:20090504T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "A Matter of Some Gravity" (Terry Matilsky, Rutgers, The State University of New Jersey) DESCRIPTION: LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12415554004eb5abb135cfacd40f9a4127c0c349f8@sns.ias.edu DTSTART:20090505T203000Z DTEND:20090505T203000Z SUMMARY:Princeton University Astronomy Colloquium/2009 Lyman Spitzer, Jr. Lecturer, "Evolving Protoplanetary Disks" (Ewine F. van Dishoeck, Leiden Observatory, The Netherlands and Max-Planck Institut fur Extraterrestrische Physik, Garching) DESCRIPTION:Stars and planetary systems are born deep inside molecular clouds of gas and dust. The detection of more than 350 exo-planets around nearby stars shows that the formation of gas-rich giant planets is common. But how do these planets form, and which ingredients are available to build them? Only long wavelength observations are able to probe the physical and chemical processes associated with the initial stages of star- and planet formation. In this talk, an overview of recent work by our group and colleagues on observations and models of protoplanetary disks around young stars in various stages of evolution will be presented. Observationally, spectroscopic data on gases and solids obtained with the Spitzer Space Telescope, VLT-CRIRES and millimeter interferometry will be discussed for a large sample of sources, including young disks that are still in the embedded phase as well as transitional disks with large inner dust holes. The results will be discussed in the context of models of flared and flat disks and their evolution from the protostellar to the debris disk phase. The prospects for future facilities, in particular the Herschel Space Observatory, the James Webb Space Telescope, the Atacama Large Millimeter Array and ELTs, will be discussed. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1241627400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090506T163000Z DTEND:20090506T163000Z SUMMARY: Princeton University Wunch Talk, "Massive Star Formation Through the Universe" (Jonathan Tan, University of Florida) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124162920021bb718a0c555ab14e72d75c8054a7d5@sns.ias.edu DTSTART:20090506T170000Z DTEND:20090506T170000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - ROOM ADDED, "The Cosmic Ray Energy Spectrum Measured by the Pierre Auger Observatory" (Robert Knapik, Colorado State University) DESCRIPTION:The origins of comic rays with energies greater than 1018 eV are veryuncertain. This talk highlights comic ray detection with emphasis givenon how the energy of an event is determined, specifically, on how theatmosphere is used as a calorimeter. The Pierre Auger Observatory wasable to take data during construction but was only fully completed lastsummer. Already Auger has accumulated more data than all previousexperiments combined. The energy spectrum measured by Auger is comparedwith previous experiments and the systematic differences that existbetween measured spectra are discussed. The energy spectrum, along witharrival direction studies and primary particle identification, are used toconstrain models for the sources of high energy cosmic rays. Theastrophysical implications of the early Auger results and the next stepsfor the Observatory are presented. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 2N36 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124179840022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090508T160000Z DTEND:20090508T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Microwave Kinetic Inductance Devices" (Lucas Parker, Princeton University Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124179840022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090508T160000Z DTEND:20090508T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Negative Mass in General Relativity" (Katarina Visnjic, Princeton University Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12418074008fe1a33f9d135ef9ad185c71632bddc4@sns.ias.edu DTSTART:20090508T183000Z DTEND:20090508T183000Z SUMMARY:Princeton University Department of Physics Special Talk - ADDED, "The LUX Dark Matter Experiment" (Tom Shutt, Physics Department, Case Western Reserve University) DESCRIPTION:Overwhelming cosmological and astrophysical evidence suggests that thedominant mass in the universe is in the form of as-yet-unidentified darkmatter. The most favored candidate for dark matter is weakly interactingparticles (WIMPs), which are also a generic prediction in supersymmetry. http://luxdarkmatter.org/WIMPs in our galaxy can be measured by their interactions in detectorsoperated deep underground with backgrounds from radioactive and cosmic-rayssuppressed by some 10 orders of magnitude from ambient levels. Recentadvances in detectors based on liquified noble elements promise a radicalincrease in the sensitivity of these experiments, and will allow a nearlycomplete test of supersymmetric dark matter in the next decade. Such effortsare complementary to the LHC. The LUX experiment is constructing a 300 kgliquid Xe-based detector that will be operated in site of Ray Davis'original solar neutrino experiment in the Homestake mine in South Dakota. LOCATION:Jadwin Hall, Room A-9 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12418110006e61d2a77975fdae719de766ad39f335@sns.ias.edu DTSTART:20090508T193000Z DTEND:20090508T193000Z SUMMARY:Princeton University Astrophysical Sciences 2009 Lyman Spitzer, Jr. Lecture Series - Lecture 1, "Basic Molecular Processes" (Ewine F. van Dishoeck, Leiden Observatory, The Netherlands and Max-Planck Institut fur Extraterrestrische Physik, Garching) DESCRIPTION:Introduction to molecular clouds and observational techniques. Summary of identified interstellar molecules and questions to be addressed. Discussion of basic gas-phase processes, including radiative association, photodissociation, dissociative recombination and ion-molecule reactions. Recent developments in our understanding of grain-surface processes, including the formation of H2 and other simple species. Each basic process will be illustrated with an astrophysically relevant example ranging from chemistry in the early Universe to that in start-ofrming regions. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124207020045d2f5a1c60fec79d9933b7f22d3b35a@sns.ias.edu DTSTART:20090511T193000Z DTEND:20090511T193000Z SUMMARY:Princeton University Astrophysical Sciences 2009 Lyman Spitzer, Jr. Lecture Series - Lecture 2, "Chemistry in Star-forming Regions" (Ewine F. van Dishoeck, Leiden Observatory, The Netherlands and Max-Planck Institut fur Extraterrestrische Physik, Garching) DESCRIPTION:Summary of observations and models of the chemistry in low- and high-mass star-forming regions in different evolutionary stages. Distinct phases include (i) the freeze-out onto grains and extreme deuteration found in pre-stellar cores and cold outer envelope; (ii) the ice evaporation in the warm inner envelope once the start has turned on; (iii) high-temperature hot core chemistry in the innermost region; (iv) shock and UV chemistry along the outflow axis. Recent insights into the formation and evolution of water and complex organic, perhaps prebiotic, molecules will be presented. Followed by voluntary exercise: excitation of interstellar molecules using the on-line RADEX program: make your own predictions for ALMA! LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1242232200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090513T163000Z DTEND:20090513T163000Z SUMMARY: Princeton University Wunch Talk, "Modeling of X-ray Binaries" (Tassos Fragos, Northwestern University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1242329400a1b8dde196732aeeaf76a46bc0b3d972@sns.ias.edu DTSTART:20090514T193000Z DTEND:20090514T193000Z SUMMARY:Princeton University Astrophysical Sciences 2009 Lyman Spitzer, Jr. Lecture Series - Lecture 3, "Chemistry in Circumstellar Disks" (Ewine F. van Dishoeck, Leiden Observatory, The Netherlands and Max-Planck Institut fur Extraterrestrische Physik, Garching) DESCRIPTION:Summary of recent developments in models and observations of molecules in protoplanertary disks. Three-layer static model of disks, in which most of the active chemistry and emission arises from warm serface layers that are irradiated by X-ray and FUV emission from the central accreting star. Discoverery of surprisingly large abundances of hot water and simple organic molecules in the inner planet-forming zones of disks. Special attention will be given to the importance of an accurate description of the photoprocesses in the gas as grains grow and disks evolve from the gas-rich to the gas-poor phase. Other areas where disk chemistry and physics are linked include the gas temperature structure, disk viscous evolution (mixing), ionization fraction, and the beginnings of planet formation. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124240320022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090515T160000Z DTEND:20090515T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "TBA" (Nima Arkani-Hamed, IAS) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12424140001a865cdc9e73c5e325677bc15753f7d2@sns.ias.edu DTSTART:20090515T190000Z DTEND:20090515T190000Z SUMMARY:Princeton University Department of Physics Special Seminar - ADDED, "An Update from the South Pole Telescope" (Jeff McMahon, University of Chicago) DESCRIPTION:The South Pole Telescope (SPT) is a 10-meter telescope optimized for arcminute scale observations of the cosmic microwave background (CMB). Construction and commissioning were completed in January 2007, and since then we have acquired more than two years of data. Using these observations we recently published the first detection of galaxy clusters selected with the Sunyaev-Zel'dovich (SZ) effect. Through the SZ effect, we will create a mass limited catalog of galaxy clusters out to the epoch of their formation. In addition, the survey data will provide an improved measurement of the temperature power spectrum of the CMB out to arcminute scales. In this talk I will describe the telescope and instrumentation, provide an update on current and forthcoming results, and discuss plans for future science with SPT. LOCATION:Jadwin Hall, Room 102 (Joseph Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1242837000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090520T163000Z DTEND:20090520T163000Z SUMMARY: Princeton University Wunch Talk, "Astrobiology" (Caleb Scharf, Columbia University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1242850500492c3c79d127b2482444c69e5f950d24@sns.ias.edu DTSTART:20090520T201500Z DTEND:20090520T201500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia, "The Multi-Dimensional Mechanisms of Supernova Explosions" (Adam Burrows, Department of Astrophysical Sciences Princeton University) DESCRIPTION:At the confluence of much of 20th-Century physics, lies an astrophysicalpuzzle that has taxed theorists and the computational arts for almost halfa century. Supernova explosions, the source of much of the heavy elements inthe Universe and the birthplace of neutron stars and stellar-mass blackholes, are still not understood. However, using sophisticated numericaltools and platforms, theorists have been able to conduct multi-dimensionalsimulations with increasing physical fidelity that have provided insightinto the variety of phenomena that attend stellar death and explosion. Thecore of the emerging theoretical synthesis is the centrality of asphericityand the breaking of spherical symmetry. In this talk, I will review thestate of the field, the contending explosion models, and the connectionswith other exotic objects, such as gamma-ray bursts and hypernovae. In theprocess, I will highlight the state-of-the-art computational astrophysicswhich has been applied to date, and which may be necessary in the future, tocredibly unravel this mystery. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12429342003f99c90a4c7aa701a566563d7a33bed6@sns.ias.edu DTSTART:20090521T193000Z DTEND:20090521T193000Z SUMMARY:Drexel University Physics Colloquium - UPDATED, "TBA" (TBA) DESCRIPTION: LOCATION:Disque Hall, Room 919 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:124344180096b24b0e8da43da0d437099e6eefb382@sns.ias.edu DTSTART:20090527T163000Z DTEND:20090527T163000Z SUMMARY: Princeton University Wunch Talk - TOPIC ADDED, "A Deep View on the Early Universe: Extreme Makeovers & Overweight Galaxies" (Mariska Kriek, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1243539000a4461fdaa448c7676848be92d296c832@sns.ias.edu DTSTART:20090528T193000Z DTEND:20090528T193000Z SUMMARY:Drexel University Physics Colloquium - LOCATION UPDATED, "Are We Through with Solar Neutrinos?" (Lindley Winslow, Massachusetts Institute of Technology) DESCRIPTION:The sun is powered by a series of nuclear reactions that produce neutrinos. Our picture of the physics of the neutrino has come into focus thanks to the results of the SNO, Super Kamiokande, and KamLAND experiments. Together, their results show that neutrinos undergo flavor oscillation, and this is the solution to the long standing Solar Neutrino Problem. In the mean time, a new solar model problem has developed, and we are waiting for a definitive observation of the transition from matter to vacuum dominated oscillation in solar neutrinos. I will present the current status of the field, paying particular attention to the KamLAND experiment's current and future contributions to the study of solar neutrinos. LOCATION:Disque Hall, Room 919 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1244046600b4c2c3a59e4780eee63a0ae8473d5029@sns.ias.edu DTSTART:20090603T163000Z DTEND:20090603T163000Z SUMMARY: Princeton University Wunch Talk - TITLE UPDATED, "The Search for Type Ia Supernova Progenitors" (Carles Badenes, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1244120400a6822828a464b8acc66897527c0ce3a4@sns.ias.edu DTSTART:20090604T130000Z DTEND:20090604T130000Z SUMMARY:Princeton University Weak Lensing with HyperSuprimeCam on Subaru Astronomy Workshop, "For more info see: http://www.astro.princeton.edu/astroevents/weaklensing2009/program.php" (To reserve your seat, contact Professor Michael Strauss, at strauss@astro.princeton.edu) DESCRIPTION:The Hyper-SuprimeCam wide-field imager on the Subaru Telescope willrevolutionize our ability to do deep wide-field imaging in opticalbands, and in particular, will enable surveys of the cosmic shearfield using weak lensing. This workshop will bring togetherastronomers from Japan, Taiwan and Princeton to discuss the scientificopportunities and technical challenges in the weak lensing field. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1244206800a6822828a464b8acc66897527c0ce3a4@sns.ias.edu DTSTART:20090605T130000Z DTEND:20090605T130000Z SUMMARY:Princeton University Weak Lensing with HyperSuprimeCam on Subaru Astronomy Workshop, "For more info see: http://www.astro.princeton.edu/astroevents/weaklensing2009/program.php" (To reserve your seat, contact Professor Michael Strauss, at strauss@astro.princeton.edu) DESCRIPTION:The Hyper-SuprimeCam wide-field imager on the Subaru Telescope willrevolutionize our ability to do deep wide-field imaging in opticalbands, and in particular, will enable surveys of the cosmic shearfield using weak lensing. This workshop will bring togetherastronomers from Japan, Taiwan and Princeton to discuss the scientificopportunities and technical challenges in the weak lensing field. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1244472300216ab5784f9386bffb3a319c10226d29@sns.ias.edu DTSTART:20090608T144500Z DTEND:20090608T144500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Theory Seminar - NOTE CHANGE FROM USUAL DAY, "Kinetic Turbulence in Space and Astrophysical Plasmas" (Gregory G. Howes, University of Iowa) DESCRIPTION:Plasma is a ubiquitous form of matter in the universe, nearly alwaysfound to be both magnetized and turbulent. One must understand thisbehavior to interpret the observations of many astronomicalenvironments, including the galactic interstellar medium, accretionflows around stars and black holes, and the solar wind streamingoutward from our Sun. Although the turbulence at large scales iswell-described by fluid theory, for scales smaller than thecollisional mean free path, the dynamics must be described instead bykinetic theory. Because the dissipation of turbulence leading toplasma heating occurs at these small scales, the heating mechanismsare, by nature, kinetic. This transfer of turbulent energy through aninertial range from the driving scale to dissipative scales in akinetic plasma followed by the conversion of this energy into heat isa fundamental plasma physics process. The ability to make in situmeasurements of turbulence in the solar wind, for which the entireinertial range is weakly collisional, presents a great opportunity toimprove our understanding of turbulence in kinetic plasmas. In thistalk, I will present a theoretical model of this kinetic turbulentcascade. The first nonlinear simulations of the kinetic turbulentcascade at the scale of the ion Larmor radius show good qualitativeagreement with observations of turbulence in the solar wind. Progressin our understanding of kinetic turbulence necessarily requires acombined effort of theoretical modeling, nonlinear numericalsimulations, and observational constraints from the turbulent solarwind.Prof. Greg Howes from the University of Iowa will be lecturing at the PPPL fusion summer school for the National Undergraduate Fellows on June 8 and 9, and will be around some those two days to talk with anyone interested.Anyone planning to attend from outside PPPL should contact Jennifer Jones (jjones@Pppl.gov) about access. LOCATION:Princeton Plasma Physics Laboratory, PPPL Theory Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1244743200d2f5388fadf76275e5a518698ba8571c@sns.ias.edu DTSTART:20090611T180000Z DTEND:20090611T180000Z SUMMARY:University of Pennsylvania Astrophysics Talk - ADDED - NOTE TIME, "Black Holes from Curvature" (Naresh Dadhich, Inter-University Centre for Astronomy and Astrophysics, Pune) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 4E19 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1245686400bcb2efae793de24b2c70e6062184b8f8@sns.ias.edu DTSTART:20090622T160000Z DTEND:20090622T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch Summer Seminar - DIFFERENT DAY, "Sunyaev Zeldovich effect in WMAP 5yr data" (Jose Diego, Princeton University Graduate Student) DESCRIPTION:(Note: This is a brown bag lunch.) Combining data from WMAP data, a catalog of X-ray selected clusters and maps of the diffuse X-rays from ROSAT we study the SZE signal in WMAP. By stacking the areas around known clusters we can "see" the average signal from galaxy clusters. The same stacking process, but using ROSAT data allows us to compare the average X-ray profile with the average SZE profile. A comparison of the observed X-ray and SZE profiles with models reveals that models that are steeper than a beta model can produce a better fit to both data sets. The model comparison also reveals that some level of point source contamination might be affecting the SZE measurements. We compare the expected point source contamination and compare with the one derived from the SZE+models and conclude that they are consistent within reasonable limits. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12459411009ff910d3b5615062eacca91c01f2e66d@sns.ias.edu DTSTART:20090625T144500Z DTEND:20090625T144500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Theory Seminar, "Advances in Petascale Kinetic Plasma Simulation with VPIC and Roadrunner" (Kevin Bowers, Los Alamos National Laboratory) DESCRIPTION:VPIC -- a first-principles 3d electromagnetic charge-conservingrelativistic kinetic particle-in-cell code, was recently adapted torun on Los Alamos's Roadrunner, the first super-computer to break apetaflop (quadrillion floating point operations per second) in theTOP500 super-computer performance rankings. We summarize VPIC'smodeling capabilities, VPIC's optimization techniques and Roadrunner'scomputational characteristics. We then discuss three applicationsenabled by VPIC's unprecedented performance on Roadrunner: modeling laser plasma interaction in upcoming inertial confinementfusion experiments at the National Ignition Facility NIF),modeling short-pulse laser GeV ion acceleration, and modelingreconnection in space and laboratory plasmas Any non-PPPL people interested in attending should contact Jennifer Jones in advance to arrange access.Refreshments are at 10:30, seminar is at 10:45.http://w3.pppl.gov/theory/seminars.html LOCATION:Princeton Plasma Physics Laboratory, PPPL Theory Seminar Room (T169) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1249070400101d1f14c676c0ab83ac968b07080409@sns.ias.edu DTSTART:20090731T200000Z DTEND:20090731T200000Z SUMMARY:Princeton University Department of Physics Special Seminar for the Gran Sasso-South Dakota-Princeton Physics Summer School, "Explosive Astrophysics" (Adam Burrows, Princeton University) DESCRIPTION:This seminar is for high school students, participants of the 2009 Gran Sasso-South Dakota-Princeton Physics Summer School; others are welcome to attend. LOCATION:Jadwin Hall, Room A-08 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1249329600101d1f14c676c0ab83ac968b07080409@sns.ias.edu DTSTART:20090803T200000Z DTEND:20090803T200000Z SUMMARY:Princeton University Department of Physics Special Seminar for the Gran Sasso-South Dakota-Princeton Physics Summer School, "The Search for Dark Life in Our Solar System" (Tullis Onstott, Dept. of Geosciences, Princeton University) DESCRIPTION:This seminar is for high school students, participants of the 2009 Gran Sasso-South Dakota-Princeton Physics Summer School; others are welcome to attend. Dark Life is any ecosystem that survives and evolves without any significant energy reliance upon the sun (including neutrinos). On earth, anaerobic, chemolithotrophic (chemical and rock eaters) microbial communities have been discovered kilometers beneath the surface that can survive indefinitely from the decay of natural radiogenic isotopes, U, Th, and K. These communities generate methane gas as a waste product. Methane gas has been discovered in the Martian atmosphere and like the methane gas on Earth its concentration varies seasonally. Is the martian methane gas a signature of Dark Life on Mars or something else? LOCATION:Jadwin Hall, Room A-08 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12512124004a3db8dd24f6cb954b8a604355541d29@sns.ias.edu DTSTART:20090825T150000Z DTEND:20090825T150000Z SUMMARY:University of Pennsylvania Astrophysics Group Special Seminar, "Galaxy And Mass Assembly: a Survey Probing Fundamental Cold Dark Matter Model Predictions" (Peder Norberg, Observatory of Edinburgh, University of Edinburgh UK) DESCRIPTION:The 2 degree Field Galaxy Redshift Survey (2dFGRS) and the Sloan Digital Sky Survey (SDSS) have transformed our view of large scale structure in the low redshift Universe, reinforcing our standard cosmological model: a flat, dark energy dominated collisionless Cold Dark Matter model (\LamdbaCDM). However, neither survey is able to put stringent constraint on a key CDM model prediction, i.e. the shape of the dark matter halo mass function, a crucial component to all hierarchical galaxy formation models.Therefore, we designed the Galaxy And Mass Assembly (GAMA) survey with primary aim to accurately determine the CDM halo mass function over a large mass range. This deep (ten times fainter than SDSS) and wide (~250 sq.deg.) galaxy redshift survey samples the underlying large scale structure with unprecedented detail. In particular, the key scale over which the baryons and baryon physics become critical to our understanding of the structures we see, ie. the 1 kpc to 1 Mpc range, is the one that GAMA probes to an exquiste level.Started in March 08 using AAOmega on the AAT, GAMA has acquired already more than 95k good quality spectra of galaxies, typically ten times fainter than those targeted by SDSS or 2dFGRS. In this talk, I will first overview some of the main results from SDSS & 2dFGRS, emphasizing on both their successes and limitations. This will indirectly lead me towards an outline of the main GAMA science goals, and present some preliminary science results from this exquisite dataset. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 4E19 (Astronomy Conference Rm) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125123040066da46c8a24d0bcac7e4f5ebb9bd86a6@sns.ias.edu DTSTART:20090825T200000Z DTEND:20090825T200000Z SUMMARY: Princeton University PhD Thesis Summary Talk - TENTIVELY SCHEDULED, ""Constraining the Cosmic Evolution of Supermassive Black Holes with Statistical Quasar Samples"" (Yue Shen/Princeton University) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125243460075de3a21d58b8bc5844262ba2760e298@sns.ias.edu DTSTART:20090908T183000Z DTEND:20090908T183000Z SUMMARY: Princeton University Astrophysics Talk - TODAY / ADDED, "Testing AGN Feedback Models in Galaxy Evolution" (Min-Su Shin, Princeton University) DESCRIPTION:Reception to follow. LOCATION:Peyton Hall Auditorium, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12525120004a3db8dd24f6cb954b8a604355541d29@sns.ias.edu DTSTART:20090909T160000Z DTEND:20090909T160000Z SUMMARY:University of Pennsylvania Astrophysics Group Special Seminar, "Modifying Gravity in the Infra Red by Imposing an" (Federico Piazza, Perimeter Institute) DESCRIPTION:I will give account of a recent work in which I attempt to modify the metric-manifold structure of GR in the infra-red. The proposed modification does not contain any adjustable parameter as it is effective at length scales comparable with the inverse (extrinsic) curvature. The guiding line for this modification is a recently proposed "ultra-strong" version of the equivalence principle, according to which the vacuum expectation value of the (bare) energy momentum tensor is exactly the same as in flat space: constant everywhere and quartically divergent with the cut-off. Some cosmological consequences of this modification will be discussed. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room 2N3 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1252695600e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20090911T190000Z DTEND:20090911T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "The Darkest Galaxies" (Marla Geha, Yale University) DESCRIPTION:Refreshements to follow in room 332W. In the past three years, fourteen Milky Way satellite galaxies have been discovered, more than doubling the known population. These newly discovered "ultra-faint" galaxies have emerged as the least luminous and most dark matter-dominated galaxies in the known Universe. They are dramatically reshaping our understanding of galaxy formation and may hold the keys to deciphering the nature of dark matter. I will review our current understand of the ultra-faint galaxies, focusing on the constraints these objects provide on dark matter. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12529494007ed75f4ce8ec575edf3dcb0969d665ab@sns.ias.edu DTSTART:20090914T173000Z DTEND:20090914T173000Z SUMMARY:Princeton University Computational Cosmology and Galaxy Formation Seminar, "Cosmological Reionization" (Renyue Cen, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125304120017feba331cdbb967c6a0748874e7298e@sns.ias.edu DTSTART:20090915T190000Z DTEND:20090915T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Informal Colloquium, "The Full Strength of Cluster Lensing" (Elinor Medezinski, Telaviv University) DESCRIPTION:Please contact Gary Bernstein (garyb@physics.upenn.edu) if you'd like to speak with Elinor or join them for lunch. ABSTRACT - I show how to isolate background galaxy populations for a properweak-lensing measurement. Published work has suffered significantcontamination by cluster members which dilute the central weak-lensingsignal, leading to underestimated mass profiles. Accurate and reliablecluster mass and light profiles are then constructed for several wellknown clusters with deep multi-color Subaru data and HST/ACSstrong-lensing, well fitted by surprisingly high-concentration NFWprofiles and where M/L peaks at ~0.2 R_vir.For the first time we demonstrate that the distant dropout populationhas a higher weak-lensing signal than the blue and red populations ofbackground galaxies, from which we derive the lensingdistance-redshift relation for A370, ZwCl0024+17 and RXJ1347-11. Herethe depths of the background populations are estimated with referenceto the COSMOS 30-band survey of Ilbert et al, for which we can clarifyphotometric redshift ambiguity. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Astro Common Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253118600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090916T163000Z DTEND:20090916T163000Z SUMMARY: Princeton University Wunch Talk, "The Full Strength of Cluster Lensing" (Elinor Medezinski, Tel-Aviv University) DESCRIPTION:I show how to isolate background galaxy populations for a proper weak-lensing measurements. Published work has suffered significant contamination by cluster members which dilute the central weak-lensing signal, leading to underestimated mass profiles. Accurate and reliable cluster mass and light profiles are then constructed for several well known clusters with deep multi-color Subaru data and HST/ACS strong-lensing, well fitted by surprisingly high-concentration NFW profiles and where M/L peaks at ~0.2 R_vir. For the first time we demonstrate that the distant dropout population has a higher weak-lensing signal than the blue and red populations of background galaxies, from which we derive the lensing distance-redshift relation for A370, ZwCl0024+17 and RXJ1347-11. Here the depth of the background populations are estimated with reference to the COSMOS 30-band survey of Ilbert et al, for which we can clarify photometric redshift ambiguity. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253124000b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090916T180000Z DTEND:20090916T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "AGN Feedback Heating in Galaxy Clusters" (Peng Oh, University of California, Santa Barbara) DESCRIPTION:Despite short central cooling times, the gas in massive galaxy clusters shows no sign of developing massive cooling flows. At the same time, Chandra observations have shown the presence of large X-ray cavities, presumably injected by a central AGN or radio galaxy. I discuss models of AGN feedback in galaxy clusters and how they can alleviate the cooling flow problem. In particular, I discuss models of cosmic-ray heating. I also discuss a model of the bimodal galaxy cluster population, motivated by linear global stability calculations: cool core clusters are stabilized primarily by AGN heating, while normal clusters are stabilized primarily by conduction or mergers. AGN outbursts could potentially regulate the transition between the two populations. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125313390061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20090916T204500Z DTEND:20090916T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "Shedding Light on Dark Matter with Gravitational Lensing" (Chuck Keeton, Rutgers, The State University of New Jersey) DESCRIPTION:Tea served 4.30pm-4.45pm All welcome. ABSTRACT - The standard paradigm for cosmology predicts that every massive galaxy should be surrounded by a myriad of "dark dwarfs" made entirely of dark matter. The abundance of dark matter substructure is sensitive to the nature of the dark matter particle. The gravitational deflection of light provides a unique opportunity to detect dark dwarfs and probe the physics of dark matter. The theory of gravitational lensing with stochastic substructure is rich and tractable, providing a firm foundation for observational studies. Existing data reveal the average amount of dark matter substructure in galaxies, and future large samples hold great promise for revealing even more about the exotic substance that permeates the universe. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125328960022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20090918T160000Z DTEND:20090918T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Studying Competitive Critical Behavior in Problems of Gravitational Collapse, Using Numerical Relativity" (Theodor Brasoveanu, Princeton University Student) DESCRIPTION:Einstein equations, with or without coupling to matter, admit special, strong-field, non-trivially dynamic solutions which sit at the threshold of black hole formation. These solutions are minimally unstable and can be obtained by studying parametrized families of initial data, where the family parameter p can be tuned to control the amount of non-linearity in the generated spacetime. If p exceeds some threshold value p*, a black hole will be formed. A critical (black-hole threshold) solution can thus be regarded as an intermediate attractor with one unstable mode. We study various matter systems with spherical symmetry (massless Klein-Gordon field, SU(2) Yang-Mills field, perturbed boson star) to find the threshold of black hole formation, using finite-difference approximations of PDEs. We give special attention to competitive critical behavior associated with boson stars, when an imploding shell of massless real scalar field can interact with another field and trigger the gravitational collapse of the star. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253289600615e854916ee0c135d2e57e9dfa41712@sns.ias.edu DTSTART:20090918T160000Z DTEND:20090918T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TOPIC ADDED, "Observing the Multifield Cyclic Universe" (Jean-Luc Lehners, Princeton Center for Theoretical Science) DESCRIPTION:I will discuss the qualitative differences between the single-field and multifield cyclic universes, in particular the resulting global phoenix structure and its relation to dark energy. The multifield cyclic universe leads to distinct observational predictions regarding non-gaussian signatures in the CMB, and I will present a simplified derivation of these predictions. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253300400e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20090918T190000Z DTEND:20090918T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "Extinction Curves with Gravitationally Lensed Quasars" (Ardis Eliasdottir, Princeton University) DESCRIPTION:Refreshments to follow in room 332W. ABSTRACT - Determination of dust extinction curves of distant galaxies is becoming increasingly important to be able to accurately calibrate extragalactic data such as the SNIa cosmology surveys. As extragalactic extinction curves are hard to come by, Galactic type of dust extinction is frequently assumed. It is however not safe to assume that distant galaxies have the same extinction curve as that of the Galaxy as the shape of the extinction curve depends on the dust composition and grain size distribution. I will give an overview of the current state of the field - focusing on extinction curves obtained using gravitationally lensed quasars. Finally I will discuss future prospects for extinction curve studies with lensed quasars in proposed future surveys such as the LSST or SNAP. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253550600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20090921T163000Z DTEND:20090921T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12535542002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20090921T173000Z DTEND:20090921T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Predicting the SZ Effect on the Microwave Sky" (Paul Bode, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125355780013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20090921T183000Z DTEND:20090921T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "z~7-8 Survey Papers" (NA) DESCRIPTION:This week will cover reionization:http: //xxx.lanl.gov/abs/0908.3191,http: //xxx.lanl.gov/abs/0909.2255,http://xxx.lanl.gov/abs/0909.2437, andhttp://xxx.lanl.gov/abs/0909.2853. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253723400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090923T163000Z DTEND:20090923T163000Z SUMMARY: Princeton University Wunch Talk, "Decoding Debris Disks: Modeling the Dynamical Signatures of Exoplanets" (Chris Stark, University of Maryland) DESCRIPTION:Many debris disks show circumstellar ring-like structures likely caused by planetary perturbations. In our tenuous zodiacal cloud, we see the faint signature of Earth itself, while resolved images of several debris disks much more dense, including Fomalhaut and HR 4796A, exhibit similar structures at much greater circumstellar distances. Until now, no debris disk model has been able to simultaneously include the gravitational resonant dynamics and grain-grain collisions necessary to accurately model these dust disks. I will present the first debris disk models to include all of the necessary physics and describe the modeling techniques we used. I will show our predictions for the structures we expect to see in future observations which can image structures due to Earth-mass planets, and present the first preliminary 3D collisional simulations of the Fomalhaut debris disk. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125372880088355b285ed4ccd4a0cbdc3b38b144c3@sns.ias.edu DTSTART:20090923T180000Z DTEND:20090923T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - ADDED, "Baryons and Metals in the Low-Redshift Intergalactic Medium and Galactic Halo" (J. Michael Shull, University of Colorado, Boulder) DESCRIPTION:I will review the current status of the "missing-baryons problem" in the low-redshift universe. Models of Big Bang nucleosynthesis and acoustic peaks in Cosmic Microwave Background each find that baryons make up 4.6 plus/minus0.2% of the critical (closure) density of the universe. However, fewer than 10% of these baryons are found in galaxies. We find that most baryons reside between the galaxies, in a highly structured, multi-phase intergalactic medium (IGM). Ultraviolet spectrographs aboard the Hubble and FUSE satellites detect half of the baryons in the "Cosmic Web", a filamentary structure seen as quasar absorption lines of diffuse neutral hydrogen (Lyman-alpha) and hot ionized gas at 105 to 106 K, produced by large-scale structure shocks and galactic winds. The Cosmic Origins Spectrograph (COS) recently installed on the Hubble Space Telescope will further probe the IGM content and evolution. COS key science projects include studies of missing baryons, IGM heavy-element evolution and transport, galaxy halos, and cosmology. We hope to study more than 10,000 filaments of the Cosmic Web in Lyman-alpha and corresponding lines of elements such as C, N, O, Si, and Fe. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125379720000061e28e48bda8951abfcdaced4cf5a@sns.ias.edu DTSTART:20090924T130000Z DTEND:20090924T210000Z SUMMARY:Princeton University Princeton Center for Theorectical Science - Rare Events Program: Rare Fluctuations and Large Disorder in Quantum Systems - Day 1 , "Rare Fluctuations and Large Disorder in Quantum Systems" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/rareevents/rareevents.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a two day meeting on "Rare Fluctuations and Large Disorder in Quantum Systems" September 24 and 25. Understanding rare events is crucial in modeling how complex many body systems organize, leading to diverse phenomena such as crystal nucleation and growth, chemical reactions in solution, self-assembly of macromolecules, protein folding and dynamics of disordered systems. Related phenomena occur in quantum field theory and cosmological phase transitions that may set the large-scale structure of the universe. Unifying theoretical concepts in this area require effective coarse-grained descriptions and non-equilibrium statistical mechanical methodologies. This program will bring together key people working in this area aiming at the development of new theoretical concepts and computational tools. Organizers: Ravin Bhatt and Roberto Car. Co-sponsored by The D. E. Shaw Group. For more information, and to register, please visit: http://www.physics.princeton.edu/pcts/rareevents/rareevents.html LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12538242008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20090924T203000Z DTEND:20090924T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "The Complexity of the Quantum Adiabatic Algorithm" (Peter Young, University of California Santa Cruz) DESCRIPTION:There is a lot of interest in knowing what problems could be solved more efficiently by a quantum computer than a classical computer, if and when a quantum computer can be built. There are a small number of specialized algorithms, of which Shor's algorithm for factoring large integers is the most famous, for which a quantum computer would be more efficient than any existing classical algorithm. In addition, the Quantum Adiabatic Algorithm (QAA) has been proposed as a way of solving a wide class of hard optimization problems on a quantum computer. In this approach one uses the quantum computer as an analogue computer, encodes the interactions of the problem in the connections between the qubits, and evolves the system slowly (one hopes adiabatically) in real time. However, there is no proof that this approach, even if one could implement it, would be more efficient than classical optimization algorithms such as simulated annealing. Early studies on very small sizes (up to about N=20 bits) indicated that the time to solve the problem only increased with a low power of N. If this trend continued to large N, the QAA would be very powerful since existing classical algorithms take an exponential amount of time (for the "worst" instances and usually for "typical" instances too). We have recently applied the technique of Quantum Monte Carlo simulations from statistical physics to study much larger sizes. During the time evolution the system undergoes a quantum phase transition, and we find that, as the size increases, an increasing fraction of instances have a first order (discontinuous) phase transition, which would be very difficult for the QAA. Prospects for the future will be discussed. Work in collaboration with Vadim Smelyanskiy and Sergey Knysh, NASA Ames Lab. A preliminary account of this work appeared in Phys. Rev. Lett. 101, 170503 (2008). LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125388360022e6fa8d0b18e6dd4bb5e5d45d9108f6@sns.ias.edu DTSTART:20090925T130000Z DTEND:20090925T210000Z SUMMARY:Princeton University Princeton Center for Theorectical Science - Rare Events Program: Rare Fluctuations and Large Disorder in Quantum Systems - Day 2 , "Rare Fluctuations and Large Disorder in Quantum Systems" (See the PCTS website: http:, /pcts.princeton.edu/pcts/rareevents/rareevents.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a two day meeting on "Rare Fluctuations and Large Disorder in Quantum Systems" September 24 and 25. Understanding rare events is crucial in modeling how complex many body systems organize, leading to diverse phenomena such as crystal nucleation and growth, chemical reactions in solution, self-assembly of macromolecules, protein folding and dynamics of disordered systems. Related phenomena occur in quantum field theory and cosmological phase transitions that may set the large-scale structure of the universe. Unifying theoretical concepts in this area require effective coarse-grained descriptions and non-equilibrium statistical mechanical methodologies. This program will bring together key people working in this area aiming at the development of new theoretical concepts and computational tools. Organizers: Ravin Bhatt and Roberto Car. Co-sponsored by The D. E. Shaw Group. For more information, and to register, please visit: http://www.physics.princeton.edu/pcts/rareevents/rareevents.html LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12538944003bfa679004d733190654c82765a6229f@sns.ias.edu DTSTART:20090925T160000Z DTEND:20090925T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - ADDED, "Does Cosmological Superconductivity Shed Light on Dark Energy?" (Stephon Alexander, Haverford College) DESCRIPTION: In this talk I demonstrate a gravitational instability, naturally present in general relativity covariantly coupled to free fermions leads to an early universe phenomenon of large scale superconductivity. This system at late time evoles robustly into a state of late time acceleration (with the tuning of one physical parameter, the number density of the fermions). The model, in contrast to fundamental scalar fields (quintessence, k-essence) only assumes general relativity and a finite number density of neutral fermions (it. sterile neutrinos). I will show that the non-perturtabive (renormalized) effective potential has the properties of a negative pressure fluid. I speculate that these neutrinos can oscillate as they propigate in their own condensate, which may have observational consequences for neutrino oscillation experiments in the near future. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1253905200e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20090925T190000Z DTEND:20090925T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "New Observational and Theoretical Insights on Cas A" (Kris Eriksen, Rutgers, The State University of New Jersey) DESCRIPTION:Refreshements to follow in room 332W. ABSTRACT: I will present results from my Ph.D. dissertation. First, our new ground-based and archival Spitzer imaging observations provide the most precise determination to date of the reddening toward Cas A's expansion center, which constrain intrinsic brightness of its nascent supernova (which was either unobserved or unremarkable). Simple light-curve models and published gamma-ray observations give a 44Ti/56Ni yield that requires that the SN explosion was asymmetric, though the abundance ratio of their stable daughter nuclei (44Ca/56Fe) is broadly consistent with solar. Second, recent published Spitzer observations provide the first unambiguous detection of material interior to Cas A's reverse shock. We use a simple, coupled non-equilibrium ionization and hydrodynamics simulation to show this material is cold and overdense, photoionized by radiation from the shocked gas, and consists primarily of incomplete explosive oxygen-burning products, though a more quantitative analysis awaits the availability of more detailed spectroscopic information. If time permits, I will also show results from progress made on a new code that incorporates non-equilibrium ionization with multi-dimensional hydrodynamics, which we will use to model the spectra and morphology of supernova remnant shocks. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125390880052a2b6aebd589304565df599c42021a4@sns.ias.edu DTSTART:20090925T200000Z DTEND:20090925T200000Z SUMMARY:Princeton University/Institute for Advanced Study Postdoc Seminar - TOPIC ADDED, "Emission from Relativistic Jets Powered by Magnetic Dissipation" (Dimitrios Giannios, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254155400461d9a6d03b853d180ac4cb0d7e9b695@sns.ias.edu DTSTART:20090928T163000Z DTEND:20090928T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion - LOCATION UPDATED, "General Discussion" (General Discussion) DESCRIPTION:If you would like to purchase lunch on campus, Woodrow Wilson Caf islocated on the first floor of Robertson Hall. The Woodrow Wilson Cafserves lunches including a featured hot entree, panini, sandwich and saladspecials in addition to tossed to order salads, made to order delisandwiches and a selection of pre-made sandwiches and salads in theGrab-n-Go area. For todays menu -http://facilities.princeton.edu/dining/_Foodpro/location.asp. Every other week the lunch will be held on the Princeton University campus. Bring your own lunch. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Princeton University, Robertson Hall, Room 011 (lower level) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12541590002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20090928T173000Z DTEND:20090928T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Simulating the First Stars and Galaxies" (John Wise, Princeton University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Princeton University and Institute for Advanced Study campuses. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125416260013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20090928T183000Z DTEND:20090928T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Submillimeter Galaxies" (Douglas Rudd, Institute for Advanced Study) DESCRIPTION:We will discuss these papers: Dave et al (2009,arXiv:0909.4078) - The Nature of Sub-millimetre Galaxies in Cosmological Hydrodynamic Simulations; Narayanan et al (2009,arXiv:0904.0004) - The Formation of High Redshift Submillimeter Galaxies; and Younger et al (2009,arXiv:0909.3299) - The AZTEC/SMA Interferometric Imaging Survey of Submillimeter-Selected High-Redshift Galaxies. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254328200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20090930T163000Z DTEND:20090930T163000Z SUMMARY: Princeton University Wunch Talk, "The Report of the U.S. Human Space Flight Plans Committee" (Chris Chyba, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254333600b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20090930T180000Z DTEND:20090930T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "Cosmological Tests of General Relativity with Tomographic Surveys" (Alessandra Silvestri, Massachusetts Institute of Technology) DESCRIPTION:Future cosmological surveys, combining galaxy counts and weak lensing measurements, will map the evolution of matter perturbations and gravitational potentials from the matter dominated epoch until today. In addition to tightening the constraints on allowed expansion histories, the combination of these measurements will test the relationships between matter overdensities, local curvature, and the Newtonian potential. These relationships can be modified in alternative theories of gravity and by exotic forms of Dark Energy. I will present a study of the potential of upcoming and future tomographic surveys, such as DES and LSST, with the aid of CMB and supernovae data, to detect departures from the growth of perturbations expected within General Relativity with a cosmological constant. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125434080007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20090930T200000Z DTEND:20090930T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - The Neutrino Mechanism of Core-Collapse Supernovae" (1 - Timothy Brandt, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125434080007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20090930T200000Z DTEND:20090930T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Gravitational Wave Signatures of Core-Collapse Supernovae" (2 - Mikhail Belyaev, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125434350061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20090930T204500Z DTEND:20090930T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "The Intertwined Lifecycle of Galaxies and Their Black Holes" (Rachel Somerville, Space Telescope Science Institute) DESCRIPTION:Tea served 4.30pm-4.45pm All welcome. ABSTRACT - The Cold Dark Matter (CDM) paradigm for structure formation is consistent with a remarkably broad variety of astrophysical observations, and provides a powerful framework in which to model and interpret observations of galaxies. However, until recently, the CDM picture was unable to account for several of the most basic observed properties of galaxies. At the same time, one of the enduring deep mysteries in galaxy formation is why the properties of galaxies and the supermassive Black Holes they harbor in their nuclei are so tightly correlated. I will discuss a 'new paradigm' for understanding galaxy formation, in which the growth of galaxies and Supermassive Black Holes are intertwined in a mutually self-regulating feedback cycle. I will illustrate this with predictions from new models that implement the growth of SMBH and the energy they release within cosmological models of galaxy formation, and confront these predictions with recent observations from multi-wavelength deep surveys. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12544992003d18f6cd114c581e224dca6f087ac1f1@sns.ias.edu DTSTART:20091002T160000Z DTEND:20091002T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TITLE CHANGED/ABSTRACT ADDED, "General Relativity on Trial: Gravitational Waves and the Parameterized Post-Einstenian Framework" (Nico Yunes, Princeton University) DESCRIPTION:With the imminent detection of gravitational waves by ground-basedinterferometers, such as LIGO, VIRGO and TAMA, pulsar timing observations,and proposed space-borne detectors, such as LISA, we must ask ourselves: howmuch do we trust general relativity? The confirmation of general relativitythrough Solar System experiments and binary pulsar observations has provedits validity in the weak-field, where velocities are small and gravity isweak, but no such tests exist in the strong, dynamical regime, precisely theregime of most interest to gravitational wave observations. Unfortunately,because of their inherent feebleness, the extraction of gravitational wavesfrom detector noise relies heavily on the technique of matched filtering,where one constructs waveform filters or templates to clean the data.Currently, all such waveforms are constructed with the implicit assumptionthat general relativity is correct both in the weak and strong, dynamicalregimes. Such an assumption constitutes a fundamental bias that willintroduce a systematic error in the detection and parameter estimation ofsignals, and in turn can lead to a mischaracterization of the universethrough incorrect inferences about source event rates and populations. Inthis talk, I will define this bias, explain its possible consequences andpropose a remedy through a new scheme: the parameterized post-Einsteinianframework. In this framework one enhances waveforms via the inclusion ofpost-Einsteinian parameters that both interpolate between general relativityand well-motivated alternative theories, but also extrapolate to unknowntheories, following sound theoretical principles, such as consistency withconservation laws and symmetries. The parametrized post-Einsteinianframework should allow matched filtered data to select a specific set ofpost-Einsteinian parameters without {\emph{a priori}} assuming the validityof the former, thus allowing the data to either verify general relativity orpoint to possible dynamical strong-field deviations. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125451360052a2b6aebd589304565df599c42021a4@sns.ias.edu DTSTART:20091002T200000Z DTEND:20091002T200000Z SUMMARY:Princeton University/Institute for Advanced Study Postdoc Seminar - TOPIC ADDED, "Lyman Alpha Forest Observations as a Tool to Study the Early Universe Cosmology" (Caroline Zunckel, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. Organizer Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254758400787768801885f48ce090934598058157@sns.ias.edu DTSTART:20091005T160000Z DTEND:20091005T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "Various" (Various) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254760200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091005T163000Z DTEND:20091005T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week the lunch is held on the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12547638002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091005T173000Z DTEND:20091005T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Simulations of AGN Feedback in Clusters and Galaxies" (Greg Novak, Princeton University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1254767400995e92122c592fe5b391388669015976@sns.ias.edu DTSTART:20091005T183000Z DTEND:20091005T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - PAPERS ADDED, "Dissecting the Red Sequence" (Discussion Leader Mariska Kriek, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. We will discuss the Graves et al papers:"Dissecting the Red Sequence. I. Star-Formation Histories of Quiescent Galaxies: The Color-Magnitude versus the Color-σ Relation," http://adsabs.harvard.edu/abs/2009ApJ...693..486G and"Dissecting the Red Sequence. II. Star Formation Histories of Early-Type Galaxies Throughout the Fundamental Plane,"http://adsabs.harvard.edu/abs/2009ApJ...698.1590G. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12549330001cdc16612729a9034b529ca54f031d90@sns.ias.edu DTSTART:20091007T163000Z DTEND:20091007T163000Z SUMMARY: Princeton University Wunch Talk - TOPIC CHANGED, "Milky Way Satellites: Masses and Profiles" (Matt Walker, University of Cambridge) DESCRIPTION:The Miky Way's dwarf galactic satellites represent the small-scale limit of galaxy formation and offer one of our best opportunities to test the cold dark matter paradigm. I present an analysis of kinematic data for the brightest dwarf spheroidals, and show that the product of half-light radius and squared velocity dispersion provides a model-independent estimate of mass enclosed within the half-light radius. Applying this formula to the entire population of Milky Way satellites, including the ultra-faint objects found with SDSS data, I find a scaling relation of the form mass proportional to r^x, where x >~ 1.4. I discuss this result within the context of a hypothesized 'universal' mass profile. Finally, I discuss prospects for using the largest kinematic data sets to distinguish constant-density cores from the cuspy density profiles characteristic of simulated dark matter halos. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12549384009e5b73fe8148579ebb562ad977b4e6e8@sns.ias.edu DTSTART:20091007T180000Z DTEND:20091007T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - TOPIC ADDED, "A Multimessenger View of the TeV Sky" (Tyce DeYoung, Pennsylvania State University) DESCRIPTION:The origins of the cosmic rays remain uncertain nearly a century after their discovery. At the TeV scale, alternative messenger particles such as neutrinos and gamma rays must be used to study the sources of cosmic rays. The IceCube observatory searches for neutrinos from suspected cosmic ray accelerators such as supernova remnants, active galactic nuclei, and gamma ray bursts, as well as from exotic sources such as dark matter annihilations. We will discuss recent results from IceCube and describe the new Deep Core low energy extension of IceCube. We will also discuss efforts to correlate IceCube data with gamma ray, X-ray, and other electromagnetic observations to produce a more complete picture of the high energy universe. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125494560007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091007T200000Z DTEND:20091007T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - The Physics of Gravitational Wave Detection" (2 - Xin Liu, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125494560007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091007T200000Z DTEND:20091007T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Neutron Star Mergers" (1 - Thanasin Nampaisarn, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255006800d43ebd6a3fb2f0b06c2e175f3faefb4e@sns.ias.edu DTSTART:20091008T130000Z DTEND:20091008T210000Z SUMMARY:Princeton University Princeton Center for Theorectical Science Symposium - AdS/CFT: New Developments and Applications: 2009-2010 - Day 1, "AdS/CFT: New Developments and Applications: 2009-2010" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/adscft/adscft.html) DESCRIPTION:The Princeton Center for Theoretical Science will host a program: "AdS/CFT: New Developments and Applications: 2009-2010." The program will consist of two symposium, one in Fall, 2009 and one in Spring 2010. Organizers: Steven Gubser, Chris Herzog, Igor Klebanov, Thomas Klose and Amos Yarom.The AdS/CFT correspondence is one of the most interesting developments to come out of string theory. It maps the physics of strongly interacting field theories to a dual classical gravitational description. Such a duality has led to a better understanding of both string theory and strongly coupled conformal field theories. This program aims to discuss both new, more formal, aspects of the duality involving M2 branes (the 2+1 dimensional fundamental objects of M-theory) which have been developed over the last two years, alongside various novel applications of the duality to condensed matter systems, hydrodynamics and heavy ion collisions. The former developments provide for gauge theory duals to stacks of M2-branes and hence in principle allow for a quantitative study of the still mysterious M- theory. The latter applications have been surprisingly successful in understanding features such as the low viscosity of the quark gluon plasma created at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and its opacity to energetic heavy quarks. Hopefully, similar usage of the AdS/CFT duality can be made for solid- state systems. For the program and to register, please visit: http://pcts.princeton.edu/pcts/adscft/adscft.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12550338008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091008T203000Z DTEND:20091008T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Gauge/Gravity Duality" (Joseph Polchinski, University of California Santa Barbara) DESCRIPTION:Gauge theories, which describe the particle interactions, are well understood, while quantum gravity presents many puzzles. Remarkably, in recent years we have learned that these are actually dual, the same system written in different variables. On the one hand this provides our most precise description of quantum gravity, and resolves some long-standing paradoxes. On the other, it gives a new perspective on the strong interaction; for example, some properties of heavy ion collisions are best modeled by black holes. I describe these ideas, and discuss current and future directions. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12550932001804313f8376d83cec21a173f7c51c6b@sns.ias.edu DTSTART:20091009T130000Z DTEND:20091009T210000Z SUMMARY:Princeton University Princeton Center for Theorectical Science Symposium - AdS/CFT: New Developments and Applications: 2009-2010 - Day 2, "AdS/CFT: New Developments and Applications: 2009-2010" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/adscft/adscft.html) DESCRIPTION:The Princeton Center for Theoretical Science will host a program: "AdS/CFT: New Developments and Applications: 2009-2010." The program will consist of two symposium, one in Fall, 2009 and one in Spring 2010. Organizers: Steven Gubser, Chris Herzog, Igor Klebanov, Thomas Klose and Amos Yarom.The AdS/CFT correspondence is one of the most interesting developments to come out of string theory. It maps the physics of strongly interacting field theories to a dual classical gravitational description. Such a duality has led to a better understanding of both string theory and strongly coupled conformal field theories. This program aims to discuss both new, more formal, aspects of the duality involving M2 branes (the 2+1 dimensional fundamental objects of M-theory) which have been developed over the last two years, alongside various novel applications of the duality to condensed matter systems, hydrodynamics and heavy ion collisions. The former developments provide for gauge theory duals to stacks of M2-branes and hence in principle allow for a quantitative study of the still mysterious M- theory. The latter applications have been surprisingly successful in understanding features such as the low viscosity of the quark gluon plasma created at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and its opacity to energetic heavy quarks. Hopefully, similar usage of the AdS/CFT duality can be made for solid- state systems. For the program and to register, please visit: http://pcts.princeton.edu/pcts/adscft/adscft.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125510400022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091009T160000Z DTEND:20091009T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Cosmic Microwave Background Observables of Small Field Models of Inflation" (Ramy Brustein, Ben-Gurion University) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255114800e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091009T190000Z DTEND:20091009T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "Infrared-Luminous Galaxies at High-Redshift" (Josh Younger, Institute for Advanced Study) DESCRIPTION:Refreshments to follow in room 332W. Thanks to new and expanded observational facilities, and ever more sophisticated theoretical calculations, the past decade has seen tremendous progress in our understanding of infrared-luminous galaxies, both locally and at high redshift. In particular, submillimeter observations, which probe the dust-reprocessed UV light from obscured star formation, has been instrumental in this process. This seminar will focus on the role of submillimeter-selected galaxies in the formation and evolution of galaxies. First, we review the benefits (and downsides) of submillimeter selection, and the broad properties of this population of galaxies. Then we discuss the use of high-resolution interferometric imaging to unambiguously identify counterparts at shorter wavelengths, which provides evidence for hyperluminous starbursts even earlier in cosmic time than previously thought. Finally, we use a combination of observational and theoretical techniques to probe the engine driving their tremendous luminosity, and the relative roles of star formation and AGN in these most extreme environments. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255365000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091012T163000Z DTEND:20091012T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch from theWoodrow Wilson Cafe, which is located on the first floor of Robertson Hall.The Woodrow Wilson Cafe serves lunches including a featured hot entree,panini, sandwich and salad specials in addition to tossed to order salads,made to order deli sandwiches and a selection of pre-made sandwiches andsalads in the Grab-n-Go area. For today's menu -http://facilities.princeton.edu/dining/_Foodpro/location.asp LOCATION:Princeton University, Robertson 011 (lower level) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12553686002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091012T173000Z DTEND:20091012T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Two Phase Formation of Massive Galaxies" (Jerry Ostriker, Princeton University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Princeton University and Institute for Advanced Study campuses. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255372200d47eec7b076d13b8ab33a8728787d9e2@sns.ias.edu DTSTART:20091012T183000Z DTEND:20091012T183000Z SUMMARY:Princeton University Princeton Center for Theorectical Science - AdS/CFT Seminars, "1 - New Development in N=4 Chern-Simons Matter Theories" (1 - Ki-Meyong Lee, Korer Institute for Advanced Study & Harvard University) DESCRIPTION:The Princeton Center for Theoretical Science will host a program: "AdS/CFT: New Developments and Applications: 2009-2010." The program will consist of two symposium, one in Fall, 2009 and one in Spring 2010. Organizers: Steven Gubser, Chris Herzog, Igor Klebanov, Thomas Klose and Amos Yarom.The AdS/CFT correspondence is one of the most interesting developments to come out of string theory. It maps the physics of strongly interacting field theories to a dual classical gravitational description. Such a duality has led to a better understanding of both string theory and strongly coupled conformal field theories. This program aims to discuss both new, more formal, aspects of the duality involving M2 branes (the 2+1 dimensional fundamental objects of M-theory) which have been developed over the last two years, alongside various novel applications of the duality to condensed matter systems, hydrodynamics and heavy ion collisions. The former developments provide for gauge theory duals to stacks of M2-branes and hence in principle allow for a quantitative study of the still mysterious M- theory. The latter applications have been surprisingly successful in understanding features such as the low viscosity of the quark gluon plasma created at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and its opacity to energetic heavy quarks. Hopefully, similar usage of the AdS/CFT duality can be made for solid- state systems. For the program and to register, please visit: http://pcts.princeton.edu/pcts/adscft/adscft.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255376700d47eec7b076d13b8ab33a8728787d9e2@sns.ias.edu DTSTART:20091012T194500Z DTEND:20091012T194500Z SUMMARY:Princeton University Princeton Center for Theorectical Science - AdS/CFT Seminars, "2 - Monopoles for M2 Branes" (2 - Thomas Klose, Princeton University) DESCRIPTION:The Princeton Center for Theoretical Science will host a program: "AdS/CFT: New Developments and Applications: 2009-2010." The program will consist of two symposium, one in Fall, 2009 and one in Spring 2010. Organizers: Steven Gubser, Chris Herzog, Igor Klebanov, Thomas Klose and Amos Yarom.The AdS/CFT correspondence is one of the most interesting developments to come out of string theory. It maps the physics of strongly interacting field theories to a dual classical gravitational description. Such a duality has led to a better understanding of both string theory and strongly coupled conformal field theories. This program aims to discuss both new, more formal, aspects of the duality involving M2 branes (the 2+1 dimensional fundamental objects of M-theory) which have been developed over the last two years, alongside various novel applications of the duality to condensed matter systems, hydrodynamics and heavy ion collisions. The former developments provide for gauge theory duals to stacks of M2-branes and hence in principle allow for a quantitative study of the still mysterious M- theory. The latter applications have been surprisingly successful in understanding features such as the low viscosity of the quark gluon plasma created at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and its opacity to energetic heavy quarks. Hopefully, similar usage of the AdS/CFT duality can be made for solid- state systems. For the program and to register, please visit: http://pcts.princeton.edu/pcts/adscft/adscft.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255537800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091014T163000Z DTEND:20091014T163000Z SUMMARY: Princeton University Wunch Talk, "Particle Acceleration in Supernova Remnants" (Klara Schure, Utrecht University) DESCRIPTION:Supernova remnants are efficient particle accelerators. In their blast waves, electrons and protons are thought to be accelerated by the diffusive shock acceleration mechanism to energies of 10^15 eV.We adapted an MHD code (AMRVAC) to include particle acceleration using stochastic differential equation. With this code, we simultaneously calculate the evolution of the supernova remnant and the particle spectrum. This allows us to obtain detailed information on the dependence of the spectrum on e.g. the topology of the magnetic field, the location within the remnant, and the equation of state. In this talk I will present some recent results. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255550400c75a5e95cd7f00dff05436712eeb5080@sns.ias.edu DTSTART:20091014T200000Z DTEND:20091014T200000Z SUMMARY:University of Pennsylvania Physics/Astrophysics Colloquia, "Massive Galaxies in Massive Datasets" (Mariangela Bernardi, University of Pennsylvania) DESCRIPTION:Colloquia are preceded by a department tea at 3:30. All talks are given by eminent scientists, renowned for their speaking ability, at a level that is accessible to all first-year graduate students. This is a department-wide event attended by all students, postdocs, and faculty. ABSTRACT - Galaxies have a wide range of luminosities, colors, masses, sizes, surface brightnesses, morphologies, star formation histories and environments. This diversity of properties is not surprising given the variety of physical processes which likely influence their formation and evolution. What *is* surprising is that although the properties we use to describe galaxies span a large configuration space, galaxies do not fill it. Amongst all galaxy families, early-type galaxies - so named because they host the oldest stars - show the most precise regularities in their observed parameters. Their colors, luminosities, half-light radii, velocity dispersions, surface brightnesses, and central black hole masses are all tightly correlated. These correlations encode information about their formation histories, but they can also be used for cosmological studies. I will concentrate on the former, because, for reasons I discuss, understanding why massive early-type galaxies are ``red, dead, metal-heads'' has proved to be difficult. The most recent hierarchical galaxy formation models assume that the stars in early-type galaxies formed in smaller units before they were assembled into a single massive galaxy. This requires a combination of two processes: dry mergers (for the assembly of the smaller units), and AGN feedback to prevent in situ star formation. These processes are most necessary in the most massive galaxies, so I will discuss a number of constraints on massive galaxy formation that come from analyses of Brightest Cluster Galaxies and other extreme objects in the SDSS and other recent astrophysical datasets. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125555040007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091014T200000Z DTEND:20091014T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "Supernova Spectral Diagnostics and Types" (K.G. Lee, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12556350006bcd735eac36454ddafcf2f61dac6b04@sns.ias.edu DTSTART:20091015T193000Z DTEND:20091015T193000Z SUMMARY:Drexel University Physics Colloquium, "Super-massive Black Holes: Rulers of the Universe?" (Gordon Richards, Drexel University) DESCRIPTION:Once the realm of philosophers, black holes have now been shown toexist. Indeed, black holes as massive as 1 million to 1 billion Sunspopulate the cores of essentially all massive galaxies. Contrary topopular thought, these super-massive black holes are messy eaters,spewing out nearly as much (in the form of mass and energy) as theyconsume. This "feedback" process has been postulated to be thevalve that controls the growth and evolution of their host galaxies,shaping the very evolution of our Universe. I will discuss howstatistical analyses of active galactic nuclei and quasars from theSloan Digital Sky Survey (SDSS) can be used to test the hypothesisthat super-massive black holes are so all-powerful. We'll find thatthe answer requires pushing even the currently most expansive datasetto its limits, providing an important argument for the next generationof astronomical surveys, including the LSST project. LOCATION:Disque Hall, Room 919 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12556386008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091015T203000Z DTEND:20091015T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Resolving New Details in the Cosmic Microwave Background" (Joseph Fowler, Princeton University) DESCRIPTION:The numerous observations of anisotropies in the cosmic microwave background (CMB) over the last two decades have provided a new view of the universe and a standard model of cosmology. The data support the basic picture of inflation and the hot Big Bang, and they allow us to estimate multiple cosmological parameters with nearly percent-level precision. While the all-sky maps from orbital missions are enormously valuable, there remains much to learn from terrestrial observations of the small-scale CMB anisotropies. They can tell us about the emergence of structure in the large-scale distribution of matter and the properties of the dark energy. Their power spectrum is sensitive to parameters of the quantum field governing the epoch of inflation. With the new Atacama Cosmology Telescope, we are starting to map the CMB at arcminute resolution to address these questions. These small-scale temperature anisotropies, along with the polarization of the CMB at a wide range of angular scales, offer fertile ground for many fruitful observations in the decade to come. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255708800e2f30569e4d6ba0aa19fd6db39c0e4f4@sns.ias.edu DTSTART:20091016T160000Z DTEND:20091016T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - UPDATED, "2 - Prospects for Direct Imaging of a Black Hole Event Horizon Using Sub-mm VLBI" (2 - Tom Essinger-Hileman, Princeton University Graduate Student) DESCRIPTION: Recent advances in developing very long baseline interferometry (VLBI) for sub-mm wavelengths could allow direct imaging of a black hole with spatial resolution of a Schwarzchild radius. There is considerable evidence that sgrA*, a compact source of radio, sub-mm, near IR, and X-ray radiation at the center of our galaxy, is a 4-million-solar-mass black hole. Direct observations of the innermost accretion flow around sgrA* would be an important window into strong-field general relativity and accretion disk dynamics. In addition, imaging of the relativistic jet produced by the much larger black hole in the center of nearby galaxy M87 could provide important clues into the dynamics of jet formation around super-massive black holes. I will review VLBI, the unique window it can open onto black hole dynamics, and the questions we can hope to answer with these observations. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255708800e2f30569e4d6ba0aa19fd6db39c0e4f4@sns.ias.edu DTSTART:20091016T160000Z DTEND:20091016T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - UPDATED, "1 - Metallic Magnetic Calorimeters" (1 - John Appel, Princeton University Graduate Student) DESCRIPTION: Metallic magnetic calorimeters (MMC) are calorimetric particle detectors that typically operate at temperatures below 100mK. They employ the magnetization of a paramagnetic sensor to detect temperature changes produced by the absorption of X-rays or other energetic particles. The absorption of energy in the calorimeter leads to a rise in temperature and a decrease in magnetization of the magnetic sensor, which can be measured accurately using a low noise, high bandwidth dc-SQUID magnetometer. MMCs for soft X-ray energy spectroscopy currently achieve a resolution of 2.7eV, the next generation of MMCs is expected to yield better than 1eV resolution. I will discuss the basic principals of MMCs, their current state of development, and future scientific applications. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255719600e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091016T190000Z DTEND:20091016T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "Planetesimal Disk Dynamics and Microlensing" (Kevin Heng, Institute for Advanced Study) DESCRIPTION:Refreshments to follow in room 332W. The advent of modern infrared observatories has uncovered hundreds of debris disks, believed to be the progeny of invisible populations of planetesimals that have never been observed outside of our Solar System. Since planetesimal formation from first principles is fraught with uncertainties, we construct a dynamical survival model that constrains the parameter space in which planetesimal disks can survive (Heng & Tremaine 2009). Within this framework, we examine the detectability of planetesimal disks via radial velocity measurements, transits and microlensing, as well as the infrared emission from the planetesimals themselves or from dust generated in planetesimal collisions. Particular attention is paid to planetesimal disk microlensing (Heng & Keeton 2009). LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255723200a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091016T200000Z DTEND:20091016T200000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Lensing in the Lyman-alpha Forest" (Marilena LoVerde, Institute for Advanced Study) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255968000787768801885f48ce090934598058157@sns.ias.edu DTSTART:20091019T160000Z DTEND:20091019T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "Huddled Masses Yearning to Breathe Free: Unresolved Brown Dwarf Binaries Identified with Low Resolution Near-Infrared Spectroscopy" (Adam Burgasser, University of California, San Diego) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255969800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091019T163000Z DTEND:20091019T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week the lunch is held on the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12559734002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091019T173000Z DTEND:20091019T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Reionization: the More We Learn, the Less We Know" (Andrei Mesinger, Princeton University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1255977000d6fc104e675df6214d1daee203af082f@sns.ias.edu DTSTART:20091019T183000Z DTEND:20091019T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - TOPIC ADDED, "FIR/Radio Correlation" (Claire Lackner, Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. Here are Monday's papers:"BLAST: the far intrared/radio correlation in distant galaxies,"R. J. Ivison, et al.,http://arxiv.org/abs/0910.1091 ;"Sources of the Radio Background Considered,"J. Singal, et al.,http://arxiv.org/abs/0909.1997 ;If you want to know more about BLAST and counting you can look at:http://arxiv.org/abs/0904.1205v2 and http://arxiv.org/abs/0906.0981 . LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125614260096b24b0e8da43da0d437099e6eefb382@sns.ias.edu DTSTART:20091021T163000Z DTEND:20091021T163000Z SUMMARY: Princeton University Wunch Talk - TOPIC ADDED, "Ages, Metallicities, and Abundance Patterns of Clusters in the Andromeda Galaxy" (Ricardo Schiavon, Gemini Observatory) DESCRIPTION:Stellar clusters are fundamental tracers of the history of formation of galaxies. Knowledge of their ages and chemical compositions can lend deep insights on the physical mechanisms behind galaxy formation. Using Hectospec, attached to MMT, we have obtained high quality spectra for hundreds of clusters from the Andromeda galaxy. The spectra were used to determine, for the first time, the abundances of carbon, nitrogen, magnesium, calcium, and iron for 176 old and intermediate age M31 globular clusters. I will present the results from this analysis, and briefly discuss their implications for our understanding of the early formation history of Andromeda. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256148000b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20091021T180000Z DTEND:20091021T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "Much Ado About Nothing - Voids in the Universe" (Fiona Hoyle, Widener University) DESCRIPTION:Voids are among the largest features in the Universe, with typical size 15 h-1 Mpc in radius, and they have been known to exist for over twenty five years. However, they are very empty; typical densities are less than 10% of average. These two facts make them very difficult to observe and thus it is only in recent years that their properties have been examined in detail. I will give an overview of how we observe nothing, describe how voids can be found and present the latest results on voids detected in the Sloan Digital Sky Survey. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125615520007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091021T200000Z DTEND:20091021T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Instabilities and Mixing in Supernova Envelopes During Explosion" (1 - Xuening Bai, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125615520007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091021T200000Z DTEND:20091021T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Pulsar Kicks and Proper Motions" (2 - Ruobing Dong, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125615790061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20091021T204500Z DTEND:20091021T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "The Quest for Dark Matter" (Cristiano Galbiati, Princeton University) DESCRIPTION:Tea served 4.30pm-4.45pm All welcome. ABSTRACT - There is a wide range of astronomical evidence that the visible stars and gas in all galaxies, including our own, are immersed in a much larger cloud of non-luminous matter, typically an order of magnitude greater in total mass. The existence of this ?dark matter? is consistent with evidence from large-scale galaxy surveys and microwave background measurements, indicating that the majority of matter in the universe is non-baryonic. The nature of this non-baryonic component is still totally unknown, and the resolution of the ?dark matter puzzle? is of fundamental importance to cosmology, astrophysics, and elementary particle physics. A leading explanation, motivated by supersymmetry theory, is the existence of as yet undiscovered Weakly Interacting Massive Particles (WIMPs), formed in the early universe and subsequentlyclustered in association with normal matter. WIMPs couldbe detected in terrestrial experiments by their collisions withordinary nuclei, giving observable low energy (<100 keV) nuclearrecoils. The predicted low collision rates require ultra- low background detectors with large (0.1?10 ton) target masses, locatedin deep underground sites to eliminate neutron background fromcosmic ray muons.The new generation of Dark Matter experiments promises to probe themost interesting region of parameters for the Dark Matter candidates. I will review and describe a number of current andfuture efforts at Princeton University dedicated to a comprehensive direct search for Dark Matter. They include operation of theWARP-140 detector at LNGS, construction of large depleted argondetectors, development of radiopure NaI detectors, and thedevelopment of the "MAX - Multi-Ton Argon and Xenon" program at the forthcoming Deep Underground Science and Engineering Laboratory (DUSEL). LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256220000edf98e00492b6d0dc5b4df26ae19ab0b@sns.ias.edu DTSTART:20091022T140000Z DTEND:20091022T210000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational General Relativistic Astrophysics - Day 1, "Computational General Relativistic Astrophysics" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a three day meeting on "Computational General Relativistic Astrophysics". A tentative outline is: Thursday, October 22: Overview of gravitational wave astronomy and gravitational wave detectors, binary black hole mergers. Friday, October 23: Binary neutron star and black hole/neutron star mergers. Saturday, October 24: Accretion disks, collapsars, jets, and supernovae. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics.The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D.E. Shaw Group. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12562434008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091022T203000Z DTEND:20091022T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Black Holes and Gravitational Waves" (Saul Teukolsky, Cornell University) DESCRIPTION:Gravitational wave detectors like LIGO are poised to begin detecting signals. One of the prime scientific goals is to detect waves from the coalescence and merger of black holes in binary systems. Confronting such signals with the predictions of Einstein's General Theory of Relativity will be the first real strong-field test of the theory. Until very recently, theorists were unable to calculate what the theory actually predicts. I will describe recent breakthroughs that have occurred and that have set things up for an epic confrontation of theory and experiment. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256302800f2dad9abee6f5ffb3a77ada2562b92ff@sns.ias.edu DTSTART:20091023T130000Z DTEND:20091023T130000Z SUMMARY:The Tri-State Astronomy Conference at CUNY (The City University of New York) - ADDED, "The Tri-State Astronomy Conference at CUNY" (See all details at: http:/, www.astro.yale.edu/tristate/) DESCRIPTION:The Tri-State area is home to one of the densest concentrations of astronomers covering all areas of research. This one-day conference aims to bring together this community to build relationships between neighboring institutions and make faculty and students aware of the expertise that can be found in our community.The conference will consist of seven review talks on various areas of astronomy that will include highlights of the work of conference participants. Participation in this one-day conference is open to students, postdocs and faculty working in the Tri-State area (NY, CT and NJ).Registration is free, but required, and includes breakfast and afternoon coffee.The program consists of invited review talks and contributed posters. See all details and register at: http://www.astro.yale.edu/tristate/ . LOCATION:CUNY Graduate Center, 365 Fifth Avenue, NY, NY 10016-4309 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256306400609596c3a3a7e08f7138a6ac3a99121f@sns.ias.edu DTSTART:20091023T140000Z DTEND:20091023T210000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational General Relativistic Astrophysics - Day 2 , "Computational General Relativistic Astrophysics" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a three day meeting on "Computational General Relativistic Astrophysics". A tentative outline is: Thursday, October 22: Overview of gravitational wave astronomy and gravitational wave detectors, binary black hole mergers. Friday, October 23: Binary neutron star and black hole/neutron star mergers. Saturday, October 24: Accretion disks, collapsars, jets, and supernovae. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics.The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D.E. Shaw Group. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12563280009e8c82dfc7ce0e253be0bdbb64ea8f65@sns.ias.edu DTSTART:20091023T200000Z DTEND:20091023T200000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar - TOPIC ADDED, "Primordial Non-Gaussianity from Isocurvature Perturbations" (Chiaki Hikage, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12563928007615d72e4da3e2d8170f95b5cd25e7e9@sns.ias.edu DTSTART:20091024T140000Z DTEND:20091024T210000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational General Relativistic Astrophysics - Day 3, "Computational General Relativistic Astrophysics" (See the PCTS web site: http:/, http://pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a three day meeting on "Computational General Relativistic Astrophysics". A tentative outline is: Thursday, October 22: Overview of gravitational wave astronomy and gravitational wave detectors, binary black hole mergers. Friday, October 23: Binary neutron star and black hole/neutron star mergers. Saturday, October 24: Accretion disks, collapsars, jets, and supernovae. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics.The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D.E. Shaw Group. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12565728005a90867892841477c0930e6d07f19d06@sns.ias.edu DTSTART:20091026T160000Z DTEND:20091026T160000Z SUMMARY:Rutgers Monday Astrophysics Research Seminars, "Heavily Obscured Supermassive Black Holes at Low and High Redshifts" (Ezequiel Treister, Institute for Astronomy at the University of Hawaii) DESCRIPTION:We constrain the number density and evolution of heavily-obscuredActive Galactic Nuclei (AGN). In the local Universe we use the widearea surveys from the Swift and INTEGRAL satellites, while for highredshifts we explore candidate selections based on a combination ofX-ray and mid-IR parameters. To find obscured AGN at high redshifts we studythe properties of a sample of 211 objects in the Extended Chandra DeepField-South selected based on their very high mid-IR to optical fluxratios. We present significant evidence supporting the AGN natureof a large fraction of these sources, including a strong stacked X-raysignal. Using this sample we measured the space density of heavily-obscuredAGN at z~2, finding a strong evolution in the number of high-luminositysources from z=1.5 to 2.5. Such strong evolution was not predicted byany existing AGN luminosity function, but can be accurately explainedby a simple prescription in which every new quasar is generated by amajor merger of two gas-rich massive galaxies, which is originallyheavily obscured and after ~100 Myrs removes most of thesurrounding gas and dust to reveal an unobscured quasar. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256574600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091026T163000Z DTEND:20091026T163000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch from theWoodrow Wilson Cafe, which is located on the first floor of Robertson Hall.The Woodrow Wilson Cafe serves lunches including a featured hot entree,panini, sandwich and salad specials in addition to tossed to order salads,made to order deli sandwiches and a selection of pre-made sandwiches andsalads in the Grab-n-Go area. For today's menu -http://facilities.princeton.edu/dining/_Foodpro/location.asp LOCATION:Princeton University, Robertson 011 (lower level) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12565782002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091026T173000Z DTEND:20091026T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Two Puzzles Posed by Galaxy Clusters" (Greg Bryan, Columbia University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Princeton University and Institute for Advanced Study campuses. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256581800d6fc104e675df6214d1daee203af082f@sns.ias.edu DTSTART:20091026T183000Z DTEND:20091026T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - TOPIC ADDED, "Stellar Population Gradients" (Charlie Conroy, Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The location will alternate between the Princeton University and Institute for Advanced Study campuses. This Monday we'll try to learn something interesting about stellar population gradients, although to be honest we'll probably spend most of our time speculating as to their physical origins.The papers are listed in order of their likelihood of being discussed:1. Stellar population gradients in early-type cluster galaxies, Rawle et al.,http://adsabs.harvard.edu/abs/2009arXiv0909.3844R ;2. Spatially resolved spectroscopy of early-type galaxies over a range in mass, Sanchez-Blazquez et al.,http://adsabs.harvard.edu/abs/2007MNRAS.377..759S ; and3. The SAURON project - VI. Line strength maps of 48 elliptical and lenticular galaxies, Kuntschner et al.,http://adsabs.harvard.edu/abs/2006MNRAS.369..497K . LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256747400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091028T163000Z DTEND:20091028T163000Z SUMMARY: Princeton University Wunch Talk, "A New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects" (Jaiyul Yoo, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:We present a general relativistic description of galaxy clustering in a FLRW universe. The observed redshift and position of galaxies are affected by the matter fluctuations and the gravity waves between the source galaxies and the observer, and the volume element constructed by using the observables differs from the physical volume occupied by the observed galaxies. Therefore, the observed galaxy fluctuation field contains additional contributions arising from the distortion in observable quantities and these include tensor contributions as well as numerous scalar contributions. We generalize the linear bias approximation to relate the observed galaxy fluctuation field to the underlying matter distribution in a gauge-invariant way. Our full formalism is essential for the consistency of theoretical predictions. As our first application, we compute the angular auto correlation of large-scale structure and its cross correlation with CMB temperature anisotropies. We comment on the possibility of detecting primordial gravity waves using galaxy clustering and discuss further applications of our formalism. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256752800b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20091028T180000Z DTEND:20091028T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "Hydrogen and Helium Reionization" (Adam Lidz, University of Pennsylvania) DESCRIPTION:A key period in our story of structure formation is the Epoch of Reionization(EoR), when early populations of galaxies and/or quasars formed, emitted ultravioletlight and ionized 'bubbles' of gas around them, eventually filling the entirevolume of the intergalactic medium (IGM) with ionized gas. Reionization studiesaim to determine the filling factor and size distribution of ionized bubbles duringthe EoR, which in turn constrain the properties of the first luminous sources.Current observations suggest that hydrogen is reionized sometime before z>~6by star-forming galaxies. These sources should simultaneously singly ionizehelium, but are unlikely to also doubly ionize it. Helium may be doubly-ionizedonly later on, perhaps near z~3, by bright quasars. I will describeefforts to theoretically model the Epochs of Hydrogen and Helium Reionization,and focus on some of their observational implications. First, I will forecast the prospectsfor learning about hydrogen reionization from upcoming 21 cm observations.I will then discuss an analysis of existing HI Ly-a forest data aimed at identifying signaturesof helium reionization near z~3. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125676000007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091028T200000Z DTEND:20091028T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - The Progenitors of Type Ia Supernovae" (1 - Clay Hambrick, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125676000007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091028T200000Z DTEND:20091028T200000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Theories for the Phillips Relation for Type Ia Supernovae" (2 - Aurelien Fraisse, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125676270061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20091028T204500Z DTEND:20091028T204500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "Noble Travails: Noble Liquid Detectors Searching for Particle Dark Matter" (Richard Gaitskell, Rutgers, The State University of New Jersey) DESCRIPTION:Tea served 4:30pm-4:45pm. All welcome. Particle dark matter is thought to be the overwhelming majority of the matter in the Universe. Its gravitational contribution overwhelms that from the ordinary matter that we, the earth and the stars, are composed of. However, we still have no direct evidence for the existence of particle dark matter. This may soon change... I will discuss some of the noble liquid target experiments that are providing competitive sensitivities in the race for the direct detection of particle dark matter. Theoretical estimates, based on supersymmetric models predict dark matter interaction rates from the best sensitivity of existing direct detection experiments of ~1 evts/kg/month, down to rates of ~1 evts/100 kg/yr, and below this. Current and future noble liquid experiments for dark matter searches, range in scale from 10's kg to 10 tonnes, and are designed to rise to this challenge. The new liquid xenon detector, LUX, which has begun construction, will be 100 times more sensitive than current best search experiments. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12568482008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091029T203000Z DTEND:20091029T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "A Walk on the Dark Side" (Cristiano Galbiati, Princeton University) DESCRIPTION:There is a wide range of astronomical evidence that the visible stars and gas in all galaxies, including our own, are immersed in a much larger cloud of non-luminous matter, typically an order of magnitude greater in total mass. The existence of this "dark matter" is consistent with evidence from large-scale galaxy surveys and microwave background measurements, indicating that the majority of matter in the universe is non-baryonic. The nature of this non-baryonic component is still totally unknown, and the resolution of the "dark matter puzzle" is of fundamental importance to cosmology, astrophysics, and elementary particle physics. Three major lines of research are directing their efforts at detection of dark matter: the accelerator-based program at the LHC, indirect searches with satellite-born detectors and direct searches with detectors operated in deep underground laboratories. The time is ripe for a discovery, and the new generation of direct searches promises to probe the most interesting region of parameters for the dark matter candidates. I will review and describe a number of current and future efforts at Princeton University dedicated to a comprehensive direct search for dark matter. They include operation of the WARP-140 argon-based detector at LNGS, construction of the DarkSide depleted argon detector, development of radiopure NaI detectors, and the development of the "MAX - Multi-Ton Argon and Xenon" program at the forthcoming Deep Underground Science and Engineering Laboratory (DUSEL). LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125691840022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091030T160000Z DTEND:20091030T160000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "A Holographic Bounce" (Neil Turok, Perimeter Institute) DESCRIPTION:In recent work with Craps and Hertog, we showed how a 4d cosmology maps to an ABJM holographic dual with a UV fixed point. In this talk I will explain how the dual theory may be solved in a 1/N expansion.and how conformal invariance determines a unique matching rule across the cosmological singularity. In the limit of infinite N one finds a precisely cyclic universe: at finite N there is controlled particle production, backreaction, and generation of scale-invariant perturbations. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256929200e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091030T190000Z DTEND:20091030T190000Z SUMMARY:Rutgers University Astrophysics Seminar, "Multiwavelength Observations of Gamma-ray Binaries" (Ginny McSwain, Lehigh University) DESCRIPTION:Refreshments to follow in room 332W. The recent launch of the Fermi Gamma-ray Space Telescope has renewed interest in the rare class of high mass X-ray binaries that also have MeV-TeV emission. Two of the best known "gamma-ray binaries" are LS I +61 303 and LS 5039. They have long been modeled as microquasars with stellar winds accreting onto a compact object, producing high energy emission and relativistic jets. However, their emission properties might be better explained by a relativistic pulsar wind colliding with the stellar wind. To resolve the controversy, I am currently leading a coordinated multiwavelength campaign to identify the nature of these sources and understand the high energy emission mechanisms. I will present preliminary results from our ongoing RXTE, optical, and radio flux monitoring as well as pulsar searches with the Green Bank Telescope LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1256932800a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091030T200000Z DTEND:20091030T200000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Ultracool Dwarfs and Their Companions" (Cullen Blake, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257181200178586ae4c5d4bb60d31cc8d7a7be904@sns.ias.edu DTSTART:20091102T170000Z DTEND:20091102T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - TOPICS/SPEAKERS ADDED, "1: The Current Solar Activity Situation" (1: Saku Tsuneta, Hinode Science Center, National Astronomical Observatory of Japan) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257181200178586ae4c5d4bb60d31cc8d7a7be904@sns.ias.edu DTSTART:20091102T170000Z DTEND:20091102T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - TOPICS/SPEAKERS ADDED, "2: Interstellar Comets" (2: Ed Turner, Princeton University) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257183000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091102T173000Z DTEND:20091102T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week the lunch is held on the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12571866002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091102T183000Z DTEND:20091102T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "The Thermal History of the IGM, Reionization, and the Ly-alpha Forest" (Adam Lidz, University of Pennsylvania) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125719020013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20091102T193000Z DTEND:20091102T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Outer Parts of Disk Galaxies" (Discussion Leader Jenny Greene, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257283800163ca959275b3961d88051b8caadd55d@sns.ias.edu DTSTART:20091103T213000Z DTEND:20091103T213000Z SUMMARY: Princeton University Astrophysical Sciences Talk, "HINODE - A New Solar Observatory in Space" (Saku Tsuneta, Hinode Science Center, National Astronomical Observatory of Japan) DESCRIPTION:Reception to follow at Grand Central. Abstract: It is a fascinating fact that a solitary star like the Sun emits intenseX-rays from its outer atmosphere. Observations with the Japan-US Yohkohsatellite showed that all the sporadic heating from X-class flares toubiquitous tiny bursts in the solar corona is due to magnetic reconnection,which generates jets, heats and non-thermal particles. Magnetic fields dodissipate in the solar corona with a time scale 1012 faster than that of theclassical Ohmic dissipation. Though this leads to an attractive conjecturethat the solar corona is heated by nano-bursts as initially proposed byParker, the precise mechanism for the heating the solar corona and for thesolar wind acceleration mechanism is not known.These activities on the surface of the star are driven by magnetic fieldscreated by dynamo mechanism. The magnetic field strength on the surface ofthe Sun exceeds 1kG, while that at the bottom of the convection zone mayexceed 100kG. They are too strong, far stronger than the equi-partitionmagnetic field strength. We have not yet known dynamo mechanism that canamplify field strength upto the equi-partition field strength, and mechanismto produce field strength beyond that threshold.The concept of Hinode is that two X-ray and EUV telescopes observe thedissipation part of the magnetic life-cycle, while the visible lighttelescope simultaneously observes the generation and transport of magneticfield. Discoveries with Hinode include MHD waves in spicules, prominencesand on the photosphere, ubiquitous jets in chromospheres, ubiquitoustransient horizontal magnetic fields on the photosphere suggesting localdynamo process, supersonic down-flow and convective collapse resulting insuper equi-partition magnetic field strength, emergence of large-scale fluxrope from below the photosphere, kG-magnetic patches in the polar regions,identification of the origin of slow solar wind, and enigmatic fine-scaleflows in the prominence. This talk summarizes how the new results fromHinode are addressing these critical questions as well as probingfundamental physical processes that will have applications in many otherscenarios across the universe. ADDITIONAL MEMO frm Ed Turner: We are happy to announce that Prof. Saku Tsuneta of NAOJ andProject Director of the HINODE Science Center will be visitingus in Peyton Hall on Nov 2-3, all day on next Monday and Tuesday.This will give us all a chance to see some of the extremelyspectacular data which the HINODE spacecraft has been returning,to learn something about its surprising implications for magneticactivity on the Sun and to hear more about the current quiteanomalously low state of solar activity (roughly speaking thefailure of sunspot and associated activity to return following the2007 minimum in the solar cycle). When David Spergel,Michael Strauss and I saw the early HINODE a data couple of monthsafter it was launched, we were all three amazed and greatlyimpressed, and I am sure that David and Michael will join me inencouraging everyone to take the opportunity to see it for themselves.Prof. Tsuneta will give a special colloquium, basically like one ofour normal spring term weekly colloquia (with the usual reception anddinner following) on Tuesday, Nov 3, at 4:30pm in the Peyton Hallauditorium. Seehttp://www.princeton.edu/astro/news-events/news-archive/?id=1898for title, abstract and other details.He will also attend the Planets Lunch on Nov 2 (Dome Room at noon), Bahcall Lunch and other local astro-events while he is here.There is a wiki athttp://astroorientation2009.wikispaces.com/Saku+Tsunetawere you can sign up for appointments to talk to him privately. LOCATION:Peyton Hall Auditorium, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257355800a2884265fae01695e4b47c6a56505b00@sns.ias.edu DTSTART:20091104T173000Z DTEND:20091104T173000Z SUMMARY: Princeton University Wunch Talk - SPEAKER/TOPIC CHANGED, "The Subaru/Princeton Exoplanet and Cosmology Survey Projects" (Ed Turner, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257361200b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20091104T190000Z DTEND:20091104T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "A New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects" (Jaiyul Yoo, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:We present a general relativistic description of galaxy clustering in a FLRW universe. The observed redshift and position of galaxies are affected by the matter fluctuations and the gravity waves between the source galaxies and the observer, and the volume element constructed by using the observables differs from the physical volume occupied by the observed galaxies. Therefore, the observed galaxy fluctuation field contains additional contributions arising from the distortion in observable quantities and these include tensor contributions as well as numerous scalar contributions. We generalize the linear bias approximation to relate the observed galaxy fluctuation field to the underlying matter distribution in a gauge-invariant way. Our full formalism is essential for the consistency of theoretical predictions. As our first application, we compute the angular auto correlation of large-scale structure and its cross correlation with CMB temperature anisotropies. We comment on the possibility of detecting primordial gravity waves using galaxy clustering and discuss further applications of our formalism. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125737110061278f7f9e296202a457fcfd6e0e4734@sns.ias.edu DTSTART:20091104T214500Z DTEND:20091104T214500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium, "A Black Hole Full of Answers" (Jan Zaanen, Instituut-Lorentz for Theoretical Physics, Leiden University) DESCRIPTION:Tea served 4:30pm-4:45pm. All welcome. Perhaps the most fundamental mystery in quantum matter is the general nature of matter formed from fermions, like the electrons. The methods of many body quantum physics fail because of the fermion sign problem and one can only rely on the phenomenological Fermi-liquid theory and its BCS-type derivatives. This has a direct bearing on the problem of high Tc superconductivity: surely in heavy fermion systems, but likely also in the optimally doped cuprates, the metallic state is a quantum critical state formed from fermions, and to understand the superconducting transition one needs to understand the normal state first. Remarkably, it might well be that the mathematics developed by string theorists is capable of describing such states of fermion matter. The so-called AdS/CFT correspondence translates the problem of strongly interacting (near) critical quantum matter into an equivalent general-relativity problem involving the propagation of classical fields in an Anti-de-Sitter space-time with a black hole in its center. This development of string theory meeting reality started some time ago with the demonstration that AdS/CFT predicts correctly the low viscosity of the near quantum critical quantum-gluon plasma as created at the Brookhaven heavy ion collider. Very recently the focus has shifted to the way AdS/CFT processes fermions, creating much excitement: we showed in Leiden that according to the AdS/CFT correspondence a Fermi-liquid with heavy quasiparticles can emerge from a microscopic critical state, while in a different implementation AdS/CFT appears to describe non Fermi-liquid states of fermion matter governed by an emergent scale invariance. LOCATION:Physics Lecture Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257537600ed5e1a27c8a9f688c0fbb9b11e0459af@sns.ias.edu DTSTART:20091106T200000Z DTEND:20091106T200000Z SUMMARY:Rutgers University Astrophysics Seminar - UPDATED, "The Animated Sky Revealed by the Fermi Gamma-ray Space Telescope" (Isabelle Grenier, University of Paris Diderot & CEA Saclay) DESCRIPTION:Refreshments to follow in room 332W. ABSTRACT: The Fermi Gamma-ray Space Telescope has been observing the sky in gamma-rays since August 2008. In addition to breakthrough capabilities in energy coverage (20 MeV-300 GeV) and angular resolution, the wide field of view of the Large Area Telescope enables observations of 20% of the sky at any instant, and of the whole sky every three hours. It has revealed a very animated sky with bright gamma-ray bursts flashing and vanishing in minutes, powerful active galactic nuclei flaring over hours and days, many pulsars twinkling in the Milky Way, and X-ray binaries shimmering along their orbit. Together with more persistent sources such as supernova remnants and pulsar wind nebulae, Fermi has found over a thousand new sources and the wealth of new data already brings important clues to the origin of the high-energy radiation and particles powered by the various kinds of accelerators. I will review the first highlight results obtained by the LAT on this new and animated gamma-ray sky, with a particular emphasis on active galactic nuclei and Galactic sources. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257541200a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091106T210000Z DTEND:20091106T210000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Gamma-Ray Burst Central Engines" (Brian Metzger, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257775200737986cf4eaf26dabdb7435d72b51cb3@sns.ias.edu DTSTART:20091109T140000Z DTEND:20091109T140000Z SUMMARY:Princeton University-Japan Society for the Promotion of Science DENET Workshop - Day 1, "Science Opportunities with Wide-Field Imaging and Spectroscopy of the Distant Universe" (See details at http:, /www.astro.princeton.edu/astroevents/widefieldsurveys/index.php) DESCRIPTION:Progress in our understanding of the fundamental problems facingcosmology, and galaxy formation and evolution, will require powerfuland comprehensive surveys of the high-redshift universe. Thisconference will bring together leading researchers planning the nextgeneration of surveys with wide-field optical telescopes, usingstate-of-the art wide-field imagers and multi-object spectrographs.Particular emphasis will be placed on the wide-field capabilities ofthe Subaru Telescope, operated by the National AstronomicalObservatory of Japan, and its next generation of instruments,including Hyper-SuprimeCam and the Prime Focus Spectrograph. Themeeting will focus both on technical issues of the instruments, and onthe science drivers for the next generation of surveys. Immediately following this meeting (i.e., starting the afternoon ofNovember 11), we will have an informal workshop to discuss the designof future surveys with Hyper-SuprimeCam. Those who wish to take partin this workshop should indicate this when registering. See all details at: http://www.astro.princeton.edu/astroevents/widefieldsurveys/index.php . LOCATION:Princeton University, Peyton Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12577914002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091109T183000Z DTEND:20091109T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "SPH and the Kelvin-Helmholtz Instability" (Markus Wetzstein, Princeton University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Princeton University and Institute for Advanced Study campuses. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12578616006829992004baa3b58aef59329f2f7b69@sns.ias.edu DTSTART:20091110T140000Z DTEND:20091110T140000Z SUMMARY:Princeton University-Japan Society for the Promotion of Science DENET Workshop - Day 2, "Science Opportunities with Wide-Field Imaging and Spectroscopy of the Distant Universe" (See details at http:, /www.astro.princeton.edu/astroevents/widefieldsurveys/index.php) DESCRIPTION:Progress in our understanding of the fundamental problems facingcosmology, and galaxy formation and evolution, will require powerfuland comprehensive surveys of the high-redshift universe. Thisconference will bring together leading researchers planning the nextgeneration of surveys with wide-field optical telescopes, usingstate-of-the art wide-field imagers and multi-object spectrographs.Particular emphasis will be placed on the wide-field capabilities ofthe Subaru Telescope, operated by the National AstronomicalObservatory of Japan, and its next generation of instruments,including Hyper-SuprimeCam and the Prime Focus Spectrograph. Themeeting will focus both on technical issues of the instruments, and onthe science drivers for the next generation of surveys. Immediately following this meeting (i.e., starting the afternoon ofNovember 11), we will have an informal workshop to discuss the designof future surveys with Hyper-SuprimeCam. Those who wish to take partin this workshop should indicate this when registering. See all details at: http://www.astro.princeton.edu/astroevents/widefieldsurveys/index.php . LOCATION:Princeton University, Peyton Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257948000db62a47f1ad7d4ae2163f356624f8a96@sns.ias.edu DTSTART:20091111T140000Z DTEND:20091111T140000Z SUMMARY:Princeton University-Japan Society for the Promotion of Science DENET Workshop - Day 3, "Science Opportunities with Wide-Field Imaging and Spectroscopy of the Distant Universe" (See details at http:, /www.astro.princeton.edu/astroevents/widefieldsurveys/index.php) DESCRIPTION:Progress in our understanding of the fundamental problems facingcosmology, and galaxy formation and evolution, will require powerfuland comprehensive surveys of the high-redshift universe. Thisconference will bring together leading researchers planning the nextgeneration of surveys with wide-field optical telescopes, usingstate-of-the art wide-field imagers and multi-object spectrographs.Particular emphasis will be placed on the wide-field capabilities ofthe Subaru Telescope, operated by the National AstronomicalObservatory of Japan, and its next generation of instruments,including Hyper-SuprimeCam and the Prime Focus Spectrograph. Themeeting will focus both on technical issues of the instruments, and onthe science drivers for the next generation of surveys. Immediately following this meeting (i.e., starting the afternoon ofNovember 11), we will have an informal workshop to discuss the designof future surveys with Hyper-SuprimeCam. Those who wish to take partin this workshop should indicate this when registering. See all details at: http://www.astro.princeton.edu/astroevents/widefieldsurveys/index.php . LOCATION:Princeton University, Peyton Hall COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257960600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091111T173000Z DTEND:20091111T173000Z SUMMARY: Princeton University Wunch Talk, "What the Most Metal-poor Stars Tell Us About the Early Universe" (Anna Frebel, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257966000b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20091111T190000Z DTEND:20091111T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "The E and B Experiment (EBEX): Probing the History of the Universe by Measuring CMB Polarization Anisotropies" (Britt Reichborn-Kjennerud, Columbia University) DESCRIPTION:The E and B Experiment (EBEX) is a NASA-funded balloon-borne microwave telescope designed to measure the polarization of the cosmic microwave background. EBEX will probe the first fraction of a second of the universe by either detecting or placing a tighter constraint on the primordial B-mode signal resulting from gravitational waves predicted by inflation. EBEX is also sensitive to the lensing B-mode signal that is expected to be generated at late times due to the shearing of primordial E-mode polarization by foreground matter. EBEX's sensitivity to a wide range of scales and frequencies will also allow it to make unprecedented measurements of galactic polarized dust. I will provide an overview of the EBEX science and instrument and a preliminary report from the EBEX North American flight in June 2009. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1257973200c75a5e95cd7f00dff05436712eeb5080@sns.ias.edu DTSTART:20091111T210000Z DTEND:20091111T210000Z SUMMARY:University of Pennsylvania Physics/Astrophysics Colloquia, "Anti-matter in the Looking Glass" (Gary Gibbons, Department of Applied Mathematics and Theoretical Physics (DAMTP), Cambridge University) DESCRIPTION:Colloquia are preceded by a department tea at 3:30. All talks are given by eminent scientists, renowned for their speaking ability, at a level that is accessible to all first-year graduate students. This is a department-wide event attended by all students, postdocs, and faculty. I will review some recent and on-going work on the impossibility of of a static equilibrium (stable or unstable) between a matter and antimatter, both in the absence of gravitational forces and when the effects of General Relativity are taken into account. I will cover, black holes, and gravitating magnetic monoples and skyrmions. Some, but not all, of the results have appeared already on the archive as Gravitating Opposites Attract: by R. Beig, G. W. Gibbons, R. M. Schoen, arXiv:0907.119. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125797320007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091111T210000Z DTEND:20091111T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Supernova Shock Breakout" (1 - Lorenzo Sironi, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125797320007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091111T210000Z DTEND:20091111T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Light Echoes from Supernovae" (2 - Gonzalo Aniano, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125803440027993a55740883664e260db8a6a4228c@sns.ias.edu DTSTART:20091112T140000Z DTEND:20091112T140000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Rare Events Program - Day 1 , "Complex Energy Landscapes and Long Time Dynamics" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/rareevents/rareevents.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a two day meeting on "Complex Energy Landscapes and Long Time Dynamics" November 12 and 13. Organizers: Ravin Bhatt and Roberto Car. Co-sponsored by The D. E. Shaw Group. For more information, and to register, please visit: http://www.physics.princeton.edu/pcts/rareevents/rareevents.html . Nucleation phenomena in materials, relaxation processes in glasses, and large-scale conformational changes in macromolecules involve collective motions of many particles that occur rarely on the time scale of the atomic dynamics. Understanding and predicting these processes poses great theoretical challenges. This workshop intends to provide an overview of the field and stimulate the discussion on the guiding principles that govern this large class of phenomena.Confirmed speakers include: Christoph Dellago(University of Vienna),Weinan E (Princeton), Hannes Jonsson (University of Iceland and Brown University), Randall Kamien (UPenn), Yannis Kevrekidis (Princeton), David P. Landau (University of Georgia), Michele Parrinello* (ETHZ-Lugano Center), Bernhard Trout (MIT), Haw Yang (Princeton) and Stefano Piana-Agostinetti (DE Shaw). *M. Parinello will give Joint Physics/PCTS Colloquium on Thursday, Nov. 12, 2009 at 4:30 pm in Jadwin A-10. LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12580614008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091112T213000Z DTEND:20091112T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Eppur si muove (and Yet It Moves)" (Michele Parrinello, Computational Science, Department of Chemistry and Applied Biosciences, ETH Zurich) DESCRIPTION:Computer simulation methods based on empirical potentials or on the ab-initio approach have made invaluable contributions to our understanding of complex chemical and biochemical processes. However in spite of great progress in hardware, computer simulations often fall short of what is needed for a realistic description of the systems of interest. It suffices here to mention the fields of nanoscience and biomaterials where systems composed of a large number of atoms need to be studied over very long time scales. Particularly severe is the time scale problem. In this talk we shall describe methods for accelerating the study of slow processes and calculating free energies. The application and further development of these methods promises to go a long way towards pushing further the limits of computer simulation. Making processes like large scale protein motion or nucleation accessible to atomistic modeling. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258120800b6f19b17d4d6a64bc7e76709ba65c7f9@sns.ias.edu DTSTART:20091113T140000Z DTEND:20091113T140000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Rare Events Program - Day 2, "Complex Energy Landscapes and Long Time Dynamics" (See the PCTS web site: http:/, pcts.princeton.edu/pcts/rareevents/rareevents.html) DESCRIPTION:The Princeton Center for Theoretical Science will hold a two day meeting on "Complex Energy Landscapes and Long Time Dynamics" November 12 and 13. Organizers: Ravin Bhatt and Roberto Car. Co-sponsored by The D. E. Shaw Group. For more information, and to register, please visit: http://www.physics.princeton.edu/pcts/rareevents/rareevents.html . Nucleation phenomena in materials, relaxation processes in glasses, and large-scale conformational changes in macromolecules involve collective motions of many particles that occur rarely on the time scale of the atomic dynamics. Understanding and predicting these processes poses great theoretical challenges. This workshop intends to provide an overview of the field and stimulate the discussion on the guiding principles that govern this large class of phenomena.Confirmed speakers include: Christoph Dellago(University of Vienna),Weinan E (Princeton), Hannes Jonsson (University of Iceland and Brown University), Randall Kamien (UPenn), Yannis Kevrekidis (Princeton), David P. Landau (University of Georgia), Michele Parrinello* (ETHZ-Lugano Center), Bernhard Trout (MIT), Haw Yang (Princeton) and Stefano Piana-Agostinetti (DE Shaw). *M. Parinello will give Joint Physics/PCTS Colloquium on Thursday, Nov. 12, 2009 at 4:30 pm in Jadwin A-10. LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125813160022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091113T170000Z DTEND:20091113T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Cosmological Bubble Nucleation via Collisions" (Eugene Lim, Columbia University) DESCRIPTION:I will describe a new way of nucleating cosmological bubbles -- energy stored in relativistic bubble walls can provide sufficient kick to force the constituent field to go over a potential barrier and nucleate a new coherent bubble. While, this mechanism is most clearly demonstrated with high resolution numerical simulations in 3+1 dimensions, I will show that there is a simple semi-analytic description. In particular, I will argue that bubble collisions generically do not lead to catastrophic destruction of the bubble walls, but instead provide a non-probabilistic method of scanning the potential. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258142400e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091113T200000Z DTEND:20091113T200000Z SUMMARY:Rutgers University Astrophysics Seminar, "Electromagnetic Signals of Binary Black Hole Mergers" (Sean O'Neill, University of Maryland) DESCRIPTION:Refreshments to follow in room 332W. Merging supermassive binary black holes are among the most promising potential sources of gravitational waves for the planned Laser Interferometer Space Antenna (LISA). Associating these gravitational waves with electromagnetic merger signals would enable merging systems to serve as useful probes of cosmology, general relativity, and accretion physics. I will discuss various proposed signatures of binary black hole merger, focusing on the role of accretion disks in facilitating observable electromagnetic emission. Specifically, I will discuss possible scenarios in which accretion disks respond to the abrupt changes in black hole mass or relative velocity caused by gravitational wave emission. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258146000a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091113T210000Z DTEND:20091113T210000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Starting Reionization with the First Stars and Galaxies" (John Wise, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12583908009e766c8a504dbd9bfaf774202180e0bb@sns.ias.edu DTSTART:20091116T170000Z DTEND:20091116T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - SPEAKER ADDED, "1 - All the Low Mass Objects - Where Do They All Come From?" (1 - Frederick Walter, State University of New York (SUNY) Stony Brook) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12583908009e766c8a504dbd9bfaf774202180e0bb@sns.ias.edu DTSTART:20091116T170000Z DTEND:20091116T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - SPEAKER ADDED, "2 - Colors of a Second Earth" (2 - Yuka Fujii, University of Tokyo, Physics Department) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258392600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091116T173000Z DTEND:20091116T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week the lunch is held on the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12583962002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091116T183000Z DTEND:20091116T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Cold Mode of Gas Accretion" (Dusan Keres, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. ABSTRACT: Most galaxies are actively star forming at all epochs. However,observations of cold gas reservoirs indicate that, at any epoch, thereis not enough gas in dense galactic component to support evolution ofstar formation activity over time. This suggests that galactic gas isbeing replenished from the intergalactic medium.I use fully cosmological simulations of galaxyformation to study the gas supply into galactic component from highredshift to present. At high redshift "smooth" infall of coldfilamentary gas dominates the gas supply of all galaxies. This "coldmode accretion" is a major driver of very active star formationof high-z galaxies enabling such activity to proceed for a significantfraction of the Hubble time. Gas accretion rates at a given halo andgalaxy mass decrease with time, causing the drop in star formationrates. Properties and geometry of infalling gas change with halo massand redshift. At low redshift some of the halos are able to cool hotvirialized gas but filaments are still indirectly supplying galaxies withgas via cold gaseous clouds that form from infaling cold/warm filamentarygas. In this talk I will describe properties, physics and consequences ofsuch gas accretion for the formation and evolution of galaxies.Finally, I will point out promising directions forfuture research in this area and discuss several observational probesof cold halo gas that can provide strong constraints on the physics ofgas accretion in galaxies. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258399800d6fc104e675df6214d1daee203af082f@sns.ias.edu DTSTART:20091116T193000Z DTEND:20091116T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - TOPIC ADDED, "Empirical Determinations of the Total Mass to Stellar Mass Ratio Via Weak and Strong Lensing" (Discussion Leader Douglas Rudd, Institute for Advanced Study) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. To be discussed at this meeting: Our primary paper will be:"Cosmic Evolution of Virial and Stellar Mass in Early-Type Galaxies," by Lagattuta et al (arXiv:0911.2236),http://adsabs.harvard.edu/abs/2009arXiv0911.2236L ;with support fromGavazzi et al (2007), "The Sloan Lens ACS Survey. IV. The Mass Density Profile of Early-Type Galaxies out to 100 Effective Radii,"http://adsabs.harvard.edu/abs/2007ApJ...667..176G ;Jiang & Kochanek (2007), "The Baryon Fractions and Mass-to-Light Ratios of Early-Type Galaxies,"http://adsabs.harvard.edu/abs/2007ApJ...671.1568J ;and possibly an appearance byvan de Ven, Mandelbaum & Keeton (2009), "Galaxy density profiles and shapes - I. Simulation pipeline for lensing by realistic galaxy models," http://adsabs.harvard.edu/abs/2009MNRAS.398..607V . LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258565400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091118T173000Z DTEND:20091118T173000Z SUMMARY: Princeton University Wunch Talk, "The Dead Sequence: a Clear Bimodality in Galaxy Colors from z=0 to z=2.5" (Gabe Brammer, Yale University) DESCRIPTION:Recent deep near-infrared surveys have extended the study of the buildup of stellar mass in galaxies to ever-increasing redshifts. Improved methods for estimating photometric redshifts can allow us to exploit the full depths of such surveys that frequently reach much fainter than is currently feasible for large spectroscopic campaigns. I will present first results from the NEWFIRM Medium-Band Survey, a 75- night survey program recently undertaken with the Mayall 4-m, that uses 5 custom medium-width NIR filters designed to measure precise photometric redshifts and rest-frame colors for galaxies at z > 1.5. We find that the color bimodality between "red and dead" and blue star- forming galaxies, prominent at lower redshifts, persists to at least z~2.5. The separation of the two color populations is greatly improved after accounting for the effects of dust-reddening of galaxies in the blue cloud. The existence of apparently "dead" galaxies at these high redshifts is remarkable, given the large gas reservoir available at those early times and the fact that the average star formation rate in the Universe was much higher than it is today. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12585708009e5b73fe8148579ebb562ad977b4e6e8@sns.ias.edu DTSTART:20091118T190000Z DTEND:20091118T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar - TOPIC ADDED, "Cosmic Dust" (Brice Menard, Canadian Institute for Theoretical Astrophysics) DESCRIPTION:After summarizing the existing constraints on the opacity of the Universe, I will present the detection of intergalactic dust obtained with the SDSS and discuss its potential impact on the study of type Ia Supernovae. The detection of dust is based on correlating the colors of distant quasars with the density of foreground matter. It allows us to trace the spatial distribution of the dust from 20 kpc to several Mpc around galaxies. Its projected density appears to follow that of the mass (obtained from magnification measurements) but lower by 5 orders of magnitude. We quantify the amount of dust in galactic halos, the wavelength dependence of its extinction and its contribution to the overall opacity of the Universe. I will finally show how this cosmic dust component can affect the estimation of cosmological parameters from type Ia supernovae. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125857800007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091118T210000Z DTEND:20091118T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Propagation of Supernova Blast Waves Through the ISM" (1 - Elisa Chisari, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125857800007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091118T210000Z DTEND:20091118T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Cosmic-Ray Acceleration in SNR Shocks" (2 - Yanfei Jiang, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12586590003ee3ff257eefef6143b7b1a6ecfc3ebf@sns.ias.edu DTSTART:20091119T193000Z DTEND:20091119T193000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Special Seminar - ADDED, "Testing the No-Hair Theorem with Astrophysical Black Holes" (Dimitrios Psaltis, University of Arizona) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12586626006bcd735eac36454ddafcf2f61dac6b04@sns.ias.edu DTSTART:20091119T203000Z DTEND:20091119T203000Z SUMMARY:Drexel University Physics Colloquium, "Cosmic Voids and Void Galaxies" (Michael Vogeley, Drexel University) DESCRIPTION:Wide-angle, moderately deep redshift surveys such as that conducted as part of the Sloan Digital Sky Survey (SDSS) allow study of the relationship between the structural elements of the large-scale distribution of galaxies - including groups, cluster, superclusters, and voids - and the dependence of galaxy formation and evolution on these environments. In this talk I will focus on the identification of voids as dynamically distinct large-scale structures and examine their properties. Then I will discuss the properties of galaxies in voids, from normal galaxies to merging galaxies and active galactic nuclei. LOCATION:Disque Hall, Room 919 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12586662008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091119T213000Z DTEND:20091119T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Geometric Mechanics: from the Atomic to the Tectonic" (L. Mahadevan, Harvard University) DESCRIPTION:Many problems involving the large deformations of soft extended objects such as strings and membranes can be formulated using elementary geometry and physics. I will discuss some of the general and specific features of these problems and their role in the description of patterns on many different length scales in the material world ranging from the deformation of atomically thin nanotubes, the self-similar wrinkles in skin, the aesthetic drapes of a fabric, the intricate folds in origami, the complex morphology of leaves and flowers, the violently crumpled sheet that is the fate of many a calculation gone awry, and the morphology of tectonic subduction zones. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125873640096dde1014371862e099dc946ca5625aa@sns.ias.edu DTSTART:20091120T170000Z DTEND:20091120T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - CANCELED, "CANCELED" DESCRIPTION: LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258747200259bf6f1101fff0d704915c1d18546d7@sns.ias.edu DTSTART:20091120T200000Z DTEND:20091120T200000Z SUMMARY:Rutgers University Astrophysics Seminar - POSTPONED (POSTPONED UNTIL THE SPRING) DESCRIPTION:The talk by Jorge Moreno originally planned for today has been postponed until the spring. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258750800a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091120T210000Z DTEND:20091120T210000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "General Relativity and Astrophysics: A Shotgun Wedding" (Nico Yunes, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258997400de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T173000Z DTEND:20091123T173000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "12:30 - 1:00 - The Lyman-alpha Forest in 3D" (David Weinberg, Institute for Advanced Study) DESCRIPTION:Bring Lunch. The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1258999200de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T180000Z DTEND:20091123T182000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "1:00 - 1:20 - A Guided Tour of BOSS Commissioning Spectra" (Michael Strauss, Princeton University) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259000400de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T182000Z DTEND:20091123T182000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "1:20 - 1:40 - Discussion" DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259001600de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T184000Z DTEND:20091123T184000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "1:40 - 2:00 - The Status of Simulations" (Renyue Cen, Princeton University) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259002800de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T190000Z DTEND:20091123T190000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "2:00 - 2:20 - Modeling the Distribution of HI (& HeII) Absorbers During and Following Reionization(s)" (Andrei Mesinger, Princeton University) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259004000de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T192000Z DTEND:20091123T192000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "2:20 - 2:40 - Coffee Break" DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259005200de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T194000Z DTEND:20091123T194000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "2:40 - 3:00 - He Reionization" (Matias Zaldarriaga, Institute for Advanced Study) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259006400de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T200000Z DTEND:20091123T200000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "3:00 - 3:20 - Metals" (K.G. Lee, Princeton University) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259007600de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T202000Z DTEND:20091123T202000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "3:20 - 3:40 - BAO and Dark Energy" (Alexia Schulz, Institute for Advanced Study) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259008800de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T204000Z DTEND:20091123T204000Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "3:40 - 4:00 - Early Universe Physics in the Forest" (Caroline Zunckel, Princeton University) DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259009700de1cd811701c3b346c4937a02b1a6e1b@sns.ias.edu DTSTART:20091123T205500Z DTEND:20091123T205500Z SUMMARY:Princeton Local Workshop on the Lyman-alpha Forest, "4:00 - 4:20 - Discussion/ Quaker meeting" DESCRIPTION:The format of the talks in 20 the minute slots is 10-15 minutes for the speaker and 10-5 minutes for questions and discussion. Speakers please plan your talk length accordingly, blackboard encouraged. See http://www.sns.ias.edu/%7Emarilena/Lyalpha.html for any changes to the schedule. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12590100000b5eba20448972429b4e2ad62664c8d0@sns.ias.edu DTSTART:20091123T210000Z DTEND:20091123T210000Z SUMMARY:Princeton University Mathematics Analysis Seminar - CANCELLED DESCRIPTION: LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259098200e4be562c459c9257662a227d6dae845c@sns.ias.edu DTSTART:20091124T213000Z DTEND:20091124T213000Z SUMMARY:Princeton University Astrophysical Sciences Talk, "Different Cultures, Same Science" (Yasushi Suto, The University of Tokyo and Princeton University) DESCRIPTION:All countries have different languages, customs, rules and food. In particular, there are a wide variety of fairly common implicit assumptions and understandings in Japan.You would feel very convenient and comfortable if you know how to behave under those conditions, but may be embarrassed if you do not.I will present my personal experiences that made me realize huge cultural difference in the course of international collaborations toward the same scientific goal.Department of Physics, The University of Tokyo and Global Scholar, Department of Astrophysical Sciences, Princeton University. LOCATION:Peyton Hall Auditorium, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259170200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091125T173000Z DTEND:20091125T173000Z SUMMARY: Princeton University Wunch Talk, "Isotropic Luminosity Indicators in a Complete AGN Sample" (Aleks Diamond-Stanic, University of Arizona) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125918280007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091125T210000Z DTEND:20091125T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Supernova Nucleosynthesis" (1 - Andrea Kulier, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125918280007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091125T210000Z DTEND:20091125T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - R-Process Nucleosynthesis and its Site" (2 - Mario Riquelme, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259600400787768801885f48ce090934598058157@sns.ias.edu DTSTART:20091130T170000Z DTEND:20091130T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "1 - Observational Insights into the Atmospheres of Cool Young Brown Dwarfs and Giant Planets" (1 - Stan Metchev, State University of New York (SUNY), Stonybrook) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259600400787768801885f48ce090934598058157@sns.ias.edu DTSTART:20091130T170000Z DTEND:20091130T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "2 - The Template of the Rossiter-McLaughlin Effect" (2 - Yasushi Suto, University of Tokyo, Physics Department) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259602200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091130T173000Z DTEND:20091130T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week the lunch is held on the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125960940013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20091130T193000Z DTEND:20091130T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Bulge Morphology" (Claire Lackner, Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. For this meeting, we will look at galaxy bulging and feeding focusing in particular on image decomposition techniques. Claire will lead, and we will stay in Peyton Hall.Papers are: From SDSS, Gadotti 2008 -http://adsabs.harvard.edu/abs/2009MNRAS.393.1531G . And from H-band imaging, Weinzirl et al. 2009 - http://www.iop.org/EJ/article/0004-637X/696/1/411/apj_696_1_411.html . LOCATION:Princeton University, Peyton Hall, Grand Central Room - NOTE LOCATION! COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12596904006f3928e4dcd9a4a0d3bea686af3692fc@sns.ias.edu DTSTART:20091201T180000Z DTEND:20091201T180000Z SUMMARY:University of Pennsylvania Astrophysics Group Special Seminar - ADDED, "Cosmological Hydrogen Recombination: the Effect of High-n States and Electric Quadrupole Transitions" (Daniel Grin, California Institute of Technology) DESCRIPTION:Thanks to the ongoing Planck mission, a new window will be opened on the properties of the primordial density field, the cosmological parameters, and the physics of reionization. Much of Planck's new leverage on these quantities will come from temperature measurements at small angular scales and from polarization measurements. These both depend on the details of cosmological hydrogen recombination; use of the CMB as a probe of energies greater than 1016 GeV compels us to get the ~eV scale atomic physics right. One question that remains is how high in hydrogen principal quantum number we have to go to make sufficiently accurate predictions for Planck. Using sparse matrix methods to beat computational difficulties, I have modeled the influence of very high (up to and including n=300) excitation states of atomic hydrogen on the recombination history of the primordial plasma, resolving all angular momentum sub-states separately and including, for the first time, the effect of hydrogen quadrupole transitions. I will review the basic physics, explain the resulting plasma properties, discuss recombination histories, and close by discussing the effects on CMB observables. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street) Astronomy Seminar Room 4E19 - DIFFERENT LOCATION COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259775000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091202T173000Z DTEND:20091202T173000Z SUMMARY: Princeton University Wunch Talk, "The Evolution of Type Ia Supernovae: Insights from a Study of the Large-Scale Environments of Local Hosts" (Michael Cooper, University of Arizona) DESCRIPTION:Over the past 20 years, type Ia supernovae have been employed as cosmological probes with great success, allowing distances to be measured out to intermediate redshifts and providing increasingly strong constraints on fundamental cosmological parameters. Looking towards the next 20 years, several large space- and ground-based facilities are planned, with the goal of using supernovae to measure cosmological parameters at exceedingly high precision. In order for these future facilities to achieve their ambitious goals, systematic effects must be understood at the one percent level or better. However, to date, evolution in the supernova population has been largely overlooked as a potential systematic bias. In this talk, I will present results from a recent analysis of the large-scale environments of local type Ia supernovae, which provide an intriguing constraint on the properties of type Ia progenitors in star-forming galaxies and which reveal a potential metallicity bias in the luminosity of type Ia events that must be better understood in order for supernovae to be confidently employed as high-precision cosmological probes. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259788500492c3c79d127b2482444c69e5f950d24@sns.ias.edu DTSTART:20091202T211500Z DTEND:20091202T211500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquia, "The Last Haven for the Amateur Scientist. How the Backyard Astronomer Can and Does Do Meaningful Research" (Dr. George Sjoberg & Mr. Robert Denny) DESCRIPTION:Refreshments are served at 4 pm. ABSTRACT - In recent years, astronomers have increasingly focused on transient events such as gamma ray bursts, supernovae, cataclysmic variable star outbursts, and micro-lensing events. In response, the astronomical community has established a network with which detections of transient events can be relayed to observatories for follow-up observing. The time-sensitivity of these events requires prompt response by observers, ideally via an automated system which preempts its routine work and devotes time to taking data for the event. Mr. Denny's part of the colloquium will cover this network, including its history, its technology, and how he has provided for amateur astronomers to participate by both providing alerts and following up on events coming from professional organizations. Mr. Sjoberg will talk about how he uses his remote observatory to do imaging in support of the study of variable stars in general and cataclysmic variables in particular. He will discuss the hardware and software involved as well as describe the nature of cataclysmic variables. Entrance Procedures at PPPL: Upon arrival at PPPL, adult visitors must show a government-issued photo I.D. - for example, a passport or a driver's license. Non-U.S. citizens must show a government-issued photo I.D., plus provide the following information: citizenship, date of birth, and place of birth. For all details, go to: http://www.pppl.gov/colloquia.cfm . LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259874000f710e128607f5a4e92543bfa9af12545@sns.ias.edu DTSTART:20091203T210000Z DTEND:20091203T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series - DIFFERENT DAY & ROOM, "1 - Galactic Chemical Evolution" (1 - Ena Choi, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room A33 - DIFFERENT ROOM COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259874000f710e128607f5a4e92543bfa9af12545@sns.ias.edu DTSTART:20091203T210000Z DTEND:20091203T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series - DIFFERENT DAY & ROOM, "2 - The Nuclear Equation of State and Neutron Star Structure" (2 - Colin Hill, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room A33 - DIFFERENT ROOM COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12598758008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091203T213000Z DTEND:20091203T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Pulsars as Probes of Fundamental Physics" (Maura McLaughlin, West Virginia University) DESCRIPTION:Since the discovery of the first millisecond pulsar in 1982, they have served as exquisite probes of fundamental physics. These extremely accurate celestial clocks can be used to study stellar and binary evolution, measure general relativistic effects, and constrain equations of state. In addition, timing an array of millisecond pulsars could result in the direct detection of gravitational waves, most likely resulting from an ensemble of supermassive black hole binaries. In this talk, I will review recent progress on these experiments and the gains that will be made with continued observations with current and upcoming facilities and show that a detection of gravity waves is possible within the next 5-10 years. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125994600022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091204T170000Z DTEND:20091204T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Cosmological Hydrogen Recombination: the Effect of High-n States and Forbidden Transitions" (Daniel Grin, California Institute of Technology) DESCRIPTION:[See hoagie list: http://www.physics.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=340.] ABSTRACT: Thanks to the ongoing Planck mission, a new window will be opened on the properties of the primordial density field, the cosmological parameters, and the physics of reionization. Much of Plancks new leverage on these quantities will come from temperature measurements at small angular scales and from polarization measurements. These both depend on the details of cosmological hydrogen recombination; use of the CMB as a probe of energies greater than 1016 GeV compels us to get the ~eV scale atomic physics right. One question that remains is how high in hydrogen principle quantum number we have to go to make sufficiently accurate predictions for Planck. Using sparse matrix methods to beat computational difficulties, I have modeled the influence of very high (up to and including n=200) excitation states of atomic hydrogen on the recombination history of the primordial plasma, resolving all angular momentum sub-states separately and including, for the first time, the effect of hydrogen quadrupole transitions. I will review the basic physics, explain the resulting plasma properties, discuss recombination histories, and close by discussing the effects on CMB observables. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259956800e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091204T200000Z DTEND:20091204T200000Z SUMMARY:Rutgers University Astrophysics Seminar, "The Atacama Cosmology Telescope: An Overview and Progress Report" (Toby Marriage, Princeton University) DESCRIPTION:Refreshments to follow in room 332W. Over the coming decade, measurements of arc-minute scale temperature and polarization fluctuations will not only be an important tool for studying physical conditions in the early universe, but also a powerful probe of the growth of structure and of the physics of the intergalactic medium. The Atacama Cosmology Telescope (ACT) is conducting an arc-minute survey of >1000 square-degrees of sky at 148, 218, and 277 GHz. In the first part of this talk I give an overview of the ACT science goals, facility, and survey. In the second part of the talk I will detail our progress towards reducing the 148 GHz data from time-ordered-data to a power spectrum and SZ cluster catalog. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:125995680096a943a4f0e24fee66edd25e7139d7e0@sns.ias.edu DTSTART:20091204T200000Z DTEND:20091204T200000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Special Seminar , "Coupled Quintessence and Impact on Structure Formation" (Valeria Pettorino, Columbia University) DESCRIPTION:I will describe the possibility that dark energy might interact with other species in the universe (cdm, neutrinos or within scalar-tensor theories). I will illustrate the impact of the coupling on observations, both at the linear and non-linear level. In particular, I will focus on growing neutrino quintessence, in which neutrinos can cluster at large scales, under the effect of a fifth force mediated by the dark energy scalar field. LOCATION:Jadwin Hall, PCTS Seminar Room 407, 4th floor - DIFFERENT LOCATION COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1259960400a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091204T210000Z DTEND:20091204T210000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Non-Gaussianity and Physics of the Early Universe from the CMB" (Kendrick Smith, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260207000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091207T173000Z DTEND:20091207T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch from theWoodrow Wilson Cafe, which is located on the first floor of Robertson Hall.The Woodrow Wilson Cafe serves lunches including a featured hot entree,panini, sandwich and salad specials in addition to tossed to order salads,made to order deli sandwiches and a selection of pre-made sandwiches andsalads in the Grab-n-Go area. For today's menu -http://facilities.princeton.edu/dining/_Foodpro/location.asp LOCATION:Princeton University, Robertson 011 (lower level) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12602106002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091207T183000Z DTEND:20091207T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Radiative Transfer Modeling of Lyman-alpha Emitters and New Effects in Galaxy Clustering" (Zheng Zheng, Yale University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Princeton University and Institute for Advanced Study campuses. LOCATION:Princeton University, Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126021420013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20091207T193000Z DTEND:20091207T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Linking Galaxies and Halos" (David Weinberg, Discussion Leader, The Ohio State University and Institute for Advanced Study) DESCRIPTION:Jenny Greene is the organizer. The location will alternate between the Princeton University and Institute for Advanced Study campuses. Simon White will be visiting the IAS Tues-Fri, so we should bone up on some of his recent papers on Monday.Let's try to cover: Li & White, "The Distribution of Stellar Mass in the Low-redshift Universe,"MN 398, 2177 (2009); Guo et al., "How Do Galaxies Populate Dark Matter Halos?," arxiv:0909.4305; and Li & White, "Autocorrelations of Stellar Light and Mass in theLow-redshift Universe," arxiv:0910.2982. The third is lowest priority, and I think the second is probably the one we should spend the most time on. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260379800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091209T173000Z DTEND:20091209T173000Z SUMMARY: Princeton University Wunch Talk, "Strong Imbalanced Turbulence" (Andrey Beresnyak, The University of Wisconsin) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12603888009d2cee4d42d1904c4c68e1d298c5dda5@sns.ias.edu DTSTART:20091209T200000Z DTEND:20091209T200000Z SUMMARY:The John Bahcall Distinguished Lecture, Space Telescope Science Institute - ADDED, "Exoplanets: From Discovery to Characterization & Beyond" (Sara Seager, Massachusetts Institute of Technology) DESCRIPTION:Reception in the STScI cafe to follow the lecture. LOCATION:STScI, Baltimore, MD, The John Bahcall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126039240007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091209T210000Z DTEND:20091209T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Stellar-mass Black Hole Formation" (1 - Reina Reyes, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126039240007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091209T210000Z DTEND:20091209T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Jet Models for Gamma-Ray Bursts" (2 - Jason Li, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260392400c75a5e95cd7f00dff05436712eeb5080@sns.ias.edu DTSTART:20091209T210000Z DTEND:20091209T210000Z SUMMARY:University of Pennsylvania Physics/Astrophysics Colloquia, "Testing Gravity on Cosmic Scales" (Rachel Bean, Cornell University) DESCRIPTION:Colloquia are preceded by a department tea at 3:30. All talks are given by eminent scientists, renowned for their speaking ability, at a level that is accessible to all first-year graduate students. This is a department-wide event attended by all students, postdocs, and faculty. ABSTRACT: While the properties of gravity, and its consistency with General Relativity (GR), are well tested on solar system scales, within our system and the decay of binary pulsar orbits, they are, by comparison, poorly tested on cosmic scales. This is of particular interest as we try to understand the origins of cosmic acceleration, and whether they are a signature of deviations from GR. Using the latest measurements of the universe's expansion history, twinned with the evolution of large scale structure, we discuss the current constraints on gravity's behavior on the largest scales observable today. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260395100ec4ad5c53e9c4f04e12dd31a23344cce@sns.ias.edu DTSTART:20091209T214500Z DTEND:20091209T214500Z SUMMARY:Rutgers University Physics/Astronomy Colloquium - POSTPONED (POSTPONED) DESCRIPTION:Tea served 4:30pm-4:45pm. All welcome. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12604806008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20091210T213000Z DTEND:20091210T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Exploring Strongly Correlated Quantum Matter in Artificial Crystals of Light" (Immanuel Bloch, Ludwig-Maximilians University, Munich Max-Planck-Institut fur Quantenoptik) DESCRIPTION:Abstract: The realization of ultracold quantum gases at Nanokelvin temperatures has marked a milestone in modern quantum physics. With the help of laser light, these ultracold atom clouds can be stored in artificial periodic potentials created by laser light - so called optical lattices - that allow us to explore fundamental aspects of strongly interacting fermionic and bosonic quantum matter. In my talk, I will review some of the recent experiments on strongly correlated quantum gases in optical lattices and highlight connections to condensed matter physics, quantum information science and atomic and molecular physics. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260491400ae3e66c744d2a21e630772af192808c4@sns.ias.edu DTSTART:20091211T003000Z DTEND:20091211T003000Z SUMMARY:The John Bahcall Public Lecture, National Air and Space Museum, Washington, DC - ADDED, "Astrobiology and the Search for Life Beyond Earth" (Sara Seager, Massachusetts Institute of Technology) DESCRIPTION:The lecture will be preceded by the IMAX film 'Blue Planet' at 6:15 pm. LOCATION:National Air & Space Museum Auditorium, Washington, DC COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260546900294ce8e8f4dcf48391e55a29a5bf9a3f@sns.ias.edu DTSTART:20091211T155500Z DTEND:20091211T155500Z SUMMARY:University of Pennsylvania Center for Particle Cosmology - Inaugural Workshop - Day 1, "New Horizons in Particle Cosmology" (See confirmed speakers at: http:, /www.physics.upenn.edu/particlecosmo/workshop2009.html) DESCRIPTION:This workshop brings together leading cosmologists and particle physicists to discuss the central questions of modern cosmology. It also comprises the first of a new series of workshops rotating among the Center for Particle Cosmology at Penn, the Institute for Strings, Cosmology and Astroparticle Physics at Columbia, and the Princeton Center for Theoretical Science. If you intend on attending this workshop, PLEASE RSVP WITH MS. JEAN O'BOYLE (oboyle@hep.upenn.edu) BY FRIDAY, NOVEMBER 13. We expect toreach full capacity of our lecture hall, which can accommodate a total of 100 people (including locals + speakers), so it is very important that you reserve your seat as soon as possible, Justin Khoury (Workshop Chair), Mark Trodden & Bhuvnesh Jain (co-Directors, Center for ParticleCosmology). LOCATION:Dept. of Physics and Astronomy, 209 S. 33rd St., Philadelphia, PA 19104-6396 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126055080022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091211T170000Z DTEND:20091211T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Astrophysics of the Intra-Cluster Medium in RXJ1347-1145 from High Resolution SZE Observations" (Phil Korngut, University of Pennsylvania) DESCRIPTION:Galaxy clusters are the most massive virialized objects in the universe and, as such, are extensively used as cosmological probes. The clusters are usually assumed to be relaxed, spherical, and isothermal to simplify the analyses. I will present new observations of the Sunyaev Zel'dovich Effect (SZE) in RXJ1347-1145 made at 90GHz (3.3mm) with the MUSTANG receiver on the 100m Green Bank Telescope (GBT). These data have an angular resolution of 10 seconds of arc, making the resulting image the most resolved map of the SZE made to date. This cutting edge new dataset has confirmed a previously reported strong, localized enhancement of the SZE 20'' to the South-East of the center of X-ray emission. This enhancement of the SZE has been interpreted as hot (> 20 keV) gas caused by a recent, violent merger event and is one of only three confirmed shocks yet detected in the intra-cluster medium of galaxy clusters. I will also discuss recent improvements to the MUSTANG+GBT system and plans for future work on high resolution SZE measurements. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260561600e2723b4af33b9d16d76e44475a7f6da7@sns.ias.edu DTSTART:20091211T200000Z DTEND:20091211T200000Z SUMMARY:Rutgers University Astrophysics Seminar, "Computing the Cosmos: From Galaxy Formation to Dark Energy" (Daisuke Nagai, Yale University) DESCRIPTION:Refreshments to follow in room 332W. Clusters of galaxies are unique and powerful probes of cosmology and astrophysics, promising to provide new insights into the nature of dark energy and dark matter to the physics of galaxy formation. The study of galaxy clusters combines the richness of plasma physics with the predictive power of modern cosmological models to explain remarkable new observational results. In this talk, I will describe recent advances in theoretical and intensive numerical modeling of galaxy cluster formation and how they can help interpret recent X-ray and Sunyaev-Zel'dovich Effect cluster survey data. I will discuss outstanding issues and future research directions in this area. LOCATION:Serin Hall, Room 385E COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260563400baaf68e28f4d3ce90871c5179e156db1@sns.ias.edu DTSTART:20091211T203000Z DTEND:20091211T203000Z SUMMARY:John Bahcall Distinguished Lecture, NASA Goddard Space Flight Center - ADDED, "Exoplanets: From Discovery to Characterization & Beyond" (Sara Seager, Massachusetts Institute of Technology) DESCRIPTION:At the dawn of the first discovery of exoplanets orbiting sun-likestars, fourteen years ago, few believed that exoplanet atmosphere observationswere possible. Seven years ago, after the Hubble Space Telescope observation ofthe transiting HD 209458b atmosphere, many skeptics challenged it as aone-object, one-method success. With over two dozen exoplanet atmospheresobserved today, we have solidly entered the first stage of exoplanet atmosphereresearch. I will review the highlights of hot Jupiter atmosphere studies:detection of molecular spectral features; constraints on atmospheric verticalstructure; and diversity of day-night temperature gradients. I will show whatwe can robustly infer from the two best transiting hot Jupiter atmosphere datasets using a new atmospheric temperature and abundance retrieval method. As hotJupiter observations and interpretation are maturing, the next frontier issuper Earth atmospheres. Theoretical models are moving forward withobservational hopes pinned on the James Webb Space Telescope, scheduled forlaunch in 2014. I will conclude with an update on the realistic but futuristicattempt to answer the enigmatic and ancient question, "Are we alone?" viadetection of atmospheric biosignatures. For more information go to: http://scicolloq.gsfc.nasa.gov/ LOCATION:NASA Goddard Space Flight Center, Greenbelt, MD, Building 3 Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260565200a0f51969199906ac02d01a902a90e74c@sns.ias.edu DTSTART:20091211T210000Z DTEND:20091211T210000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar, "Mapping Calcium Across the Surface of the White Dwarf Star G29-38" (Susan Thompson, University of Delaware & Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260626400b7d4471f801b6362ee9dbab84cc5843a@sns.ias.edu DTSTART:20091212T140000Z DTEND:20091212T140000Z SUMMARY:University of Pennsylvania Center for Particle Cosmology - Inaugural Workshop - Day 2, "New Horizons in Particle Cosmology" (See confirmed speakers at: http:, /www.physics.upenn.edu/particlecosmo/workshop2009.html) DESCRIPTION:This workshop brings together leading cosmologists and particle physicists to discuss the central questions of modern cosmology. It also comprises the first of a new series of workshops rotating among the Center for Particle Cosmology at Penn, the Institute for Strings, Cosmology and Astroparticle Physics at Columbia, and the Princeton Center for Theoretical Science. If you intend on attending this workshop, PLEASE RSVP WITH MS. JEAN O'BOYLE (oboyle@hep.upenn.edu) BY FRIDAY, NOVEMBER 13. We expect toreach full capacity of our lecture hall, which can accommodate a total of 100 people (including locals + speakers), so it is very important that you reserve your seat as soon as possible, Justin Khoury (Workshop Chair), Mark Trodden & Bhuvnesh Jain (co-Directors, Center for ParticleCosmology). LOCATION:Dept. of Physics and Astronomy, 209 S. 33rd St., Philadelphia, PA 19104-6396 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12606624000ea56335498d987a8213af0422eb3d17@sns.ias.edu DTSTART:20091213T000000Z DTEND:20091213T000000Z SUMMARY:University of Pennsylvania Center for Particle Cosmology - The Elon Musk Public Lecture:, "The Big Bang and Beyond" (Paul J. Steinhardt, Princeton University) DESCRIPTION:The Elon Musk Public Lecture will be given during the "New Horizons in Particle Cosmology". More details about the meeting,including confirmed speakers and schedule, can be found here:http://www.physics.upenn.edu/particlecosmo/workshop2009.html . This workshop brings together leading cosmologists and particle physicists to discuss the central questions of modern cosmology. It also comprises the first of a new series of workshops rotating among the Center for Particle Cosmology at Penn, the Institute for Strings, Cosmology and Astroparticle Physics at Columbia, and the Princeton Center for Theoretical Science. If you intend on attending this workshop, PLEASE RSVP WITH MS. JEAN O'BOYLE (oboyle@hep.upenn.edu) BY FRIDAY, NOVEMBER 13. We expect to reach full capacity of our lecture hall, which can accommodate a total of 100 people (including locals + speakers), so it is very important that you reserve your seat as soon as possible, Justin Khoury (Workshop Chair), Mark Trodden & Bhuvnesh Jain (co-Directors, Center for ParticleCosmology). LOCATION:Claudia Cohen Hall, Auditorium G17 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260712800907b5fb4859896a9f089c8cd75854d91@sns.ias.edu DTSTART:20091213T140000Z DTEND:20091213T140000Z SUMMARY:University of Pennsylvania Center for Particle Cosmology - Inaugural Workshop - Day 3, "New Horizons in Particle Cosmology" (See confirmed speakers at: http:, /www.physics.upenn.edu/particlecosmo/workshop2009.html) DESCRIPTION:This workshop brings together leading cosmologists and particle physicists to discuss the central questions of modern cosmology. It also comprises the first of a new series of workshops rotating among the Center for Particle Cosmology at Penn, the Institute for Strings, Cosmology and Astroparticle Physics at Columbia, and the Princeton Center for Theoretical Science. If you intend on attending this workshop, PLEASE RSVP WITH MS. JEAN O'BOYLE (oboyle@hep.upenn.edu) BY FRIDAY, NOVEMBER 13. We expect toreach full capacity of our lecture hall, which can accommodate a total of 100 people (including locals + speakers), so it is very important that you reserve your seat as soon as possible, Justin Khoury (Workshop Chair), Mark Trodden & Bhuvnesh Jain (co-Directors, Center for ParticleCosmology). LOCATION:Dept. of Physics and Astronomy, 209 S. 33rd St., Philadelphia, PA 19104-6396 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260799200256865e10c07a1865535210aa8c64eb5@sns.ias.edu DTSTART:20091214T140000Z DTEND:20091214T140000Z SUMMARY:University of Pennsylvania Center for Particle Cosmology - Inaugural Workshop - Day 4, "New Horizons in Particle Cosmology" (See confirmed speakers at: http:, /www.physics.upenn.edu/particlecosmo/workshop2009.html) DESCRIPTION:This workshop brings together leading cosmologists and particle physicists to discuss the central questions of modern cosmology. It also comprises the first of a new series of workshops rotating among the Center for Particle Cosmology at Penn, the Institute for Strings, Cosmology and Astroparticle Physics at Columbia, and the Princeton Center for Theoretical Science. If you intend on attending this workshop, PLEASE RSVP WITH MS. JEAN O'BOYLE (oboyle@hep.upenn.edu) BY FRIDAY, NOVEMBER 13. We expect toreach full capacity of our lecture hall, which can accommodate a total of 100 people (including locals + speakers), so it is very important that you reserve your seat as soon as possible, Justin Khoury (Workshop Chair), Mark Trodden & Bhuvnesh Jain (co-Directors, Center for ParticleCosmology). LOCATION:Dept. of Physics and Astronomy, 209 S. 33rd St., Philadelphia, PA 19104-6396 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260810000787768801885f48ce090934598058157@sns.ias.edu DTSTART:20091214T170000Z DTEND:20091214T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "A Technique to Retrieve Compositions and Temperature Profiles of Exoplanet Atmospheres" (Nikku Madhusudhan, Massachusetts Institute of Technology (Postdoc)) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260811800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20091214T173000Z DTEND:20091214T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12608154002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20091214T183000Z DTEND:20091214T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Kelvin-Helmholtz Instability II: Eulerian Galilean Invariance and What Does Numerical Convergence Really Mean Anyway?" (Douglas Rudd, Institute for Advanced Study) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126081900013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20091214T193000Z DTEND:20091214T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Passive Red Disks" (Charlie Conroy, Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. We're going to spend the hour discussing recent papers on "passive disk galaxies". Papers to be discussed are found at: http://arxiv.org/abs/0912.1077 andhttp://arxiv.org/abs/0910.4113 . LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1260984600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20091216T173000Z DTEND:20091216T173000Z SUMMARY: Princeton University Wunch Talk, "The Role of Disks in the Formation of Stellar Systems" (Kaitlin Kratter, University of Toronto) DESCRIPTION:Accretion disks mediate the flow of gas and angular momentum from molecular clouds down to the protostar. When the infall rate becomes large, the disk can no longer transport all of the material onto the central star, causing its mass to increase. When they become too massive, disks can fragment. I describe the role of disks in the formation of binary and multiple systems, and the subsequent evolution of their orbital parameters. Using global numerical experiments, I show that we can characterize the onset of instability and fragmentation as a function of the infall rate. Finally, I discuss the implications of disk instability for the upper mass limit of stars, and for the formation of massive, wide-orbit planets. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126099720007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091216T210000Z DTEND:20091216T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "1 - Supernova Feedback in Galaxy Formation" (1 - Charlie Conroy, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126099720007524f5a393c650d4248320fbe35aff2@sns.ias.edu DTSTART:20091216T210000Z DTEND:20091216T210000Z SUMMARY: Princeton University Graduate Theoretical Astrophysics Seminar Series, "2 - Models for Episodic Mass Loss from Massive Stars" (2 - Claire Lackner, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 145 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126115560022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20091218T170000Z DTEND:20091218T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "How did Galaxies Form? Lessons from Our Extragalactic Neighborhood" (Jim Peebles, Princeton University) DESCRIPTION:The relativistic hot big bang cosmology predicts gravitational gathering of matter into concentrations that look much like galaxies, but there are problems. The larger of the nearby galaxies have structures that look more like products of evolution in isolation, as island universes, than the assembly by merging predicted by the standard cosmology. It is curious that some of the largest galaxies in our immediate extragalactic neighborhood are in less crowded regions, contrary to standard ideas. And it is puzzling that the least crowded place nearby, the Local Void, contains far fewer galaxies than would be expected from the counts of galaxies observed elsewhere. The nearby galaxies would seem more understandable if structure formed more rapidly, as happens in ideas now under discussion. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12611556009395c4887b1be555883619a21bd3d798@sns.ias.edu DTSTART:20091218T170000Z DTEND:20091218T170000Z SUMMARY:Rutgers University Astrophysics Seminar - TIME & ROOM CHANGED, "ALMA: A Report from the Trenches" (Andrew Baker, Rutgers, The State University of New Jersey) DESCRIPTION:Refreshments to follow in room 332W. ABSTRACT: The Atacama Large Millimeter/submillimeter Array (ALMA), currently under construction in northern Chile, will be a superb new instrument for studies of the dense interstellar medium within the Milky Way, and in other galaxies from the Local Group to the epoch of reionization. The first opportunity for North American scientists to propose for their (~1/3) share of ALMA time will come at an "early science" deadline in early 2011, with subsequent proposal calls offering ever more powerful performance as the observatory moves towards the end of the construction phase. I will discuss ALMA's scientific drivers and technical capabilities, current plans for how users will propose for, obtain, and analyze ALMA data, and key commissioning milestones that will occur on the path to early science and full operations. My talk will be informed by my experience working as a visiting scientist with the ALMA project in Chile during the last three and a half months. LOCATION:Serin Hall, Room 401W - DIFFERENT LOCATION COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12611682000bb6bfe0d5db4e1375faa09529c76142@sns.ias.edu DTSTART:20091218T203000Z DTEND:20091218T203000Z SUMMARY:Peyton Hall/IAS Postdoc/Member Seminar - DIFFERENT TIME, "Climatic Habitability" (Dave Spiegel, Princeton University) DESCRIPTION:It's called postdoc seminars as only postdocs and IAS members are allowed to present, but of course everyone is welcome to attend. The presenter can talk about her/his own research or otherwise any topic of interest. The organizer is Mariska Kriek. LOCATION:Princeton University, Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1261416600d72b0a127e4bdcdda436cdae79f388ac@sns.ias.edu DTSTART:20091221T173000Z DTEND:20091221T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion - Canceled DESCRIPTION:The Cosmology Lunch on Monday, December 21 has been canceled. The next Cosmology Lunch will be on Monday, January 11, 2010 at IAS. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1261420200e77bda4372ad2f537c7f0395e179a5c0@sns.ias.edu DTSTART:20091221T183000Z DTEND:20091221T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar - CANCELED DESCRIPTION:The Seminar on Monday, December 21 has been cancelled. The next Seminar will be on Monday, January 11, 2010 at IAS. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1261423800f61be47e4f5f9754518af89f865e72ca@sns.ias.edu DTSTART:20091221T193000Z DTEND:20091221T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - Canceled DESCRIPTION:The Galread Group on Monday, December 21 has been cancelled. The next Galread meeting will be on Monday, January 11, 2010 at IAS. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12632346002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100111T183000Z DTEND:20100111T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "The Submillimeter View of Galaxy Formation" (Josh Younger, Institute for Advanced Study) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1263391200e1abc106f050e18db5bd72b2c2634b19@sns.ias.edu DTSTART:20100113T140000Z DTEND:20100113T220000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics Program: Frontiers of MHD - Day 1, "Compact Object Magnetospheres, Force-free MHD" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 - Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12634164008d5ababe20041a1698bfe4a6556cfb94@sns.ias.edu DTSTART:20100113T210000Z DTEND:20100113T210000Z SUMMARY:University of Pennsylvania Physics/Astrophysics Colloquia - DIFFERENT SPEAKER, "Jamming" (Andrea Liu, University of Pennsylvania) DESCRIPTION:Colloquia are preceded by a department tea at 3:30. All talks are given by eminent scientists, renowned for their speaking ability, at a level that is accessible to all first-year graduate students. This is a department-wide event attended by all students, postdocs, and faculty. ABSTRACT - All around us things seem to get jammed. Before breakfast, coffee grounds and cereal jam as they refuse to flow into our filters and bowls. On the way to work, we are caught in traffic jams. In factories, powders jam as they clog in the conduits that were designed to have them flow smoothly from one side of the factory floor to the other. Our recourse in all these situations is to pound on our containers, dashboards and conduits until the jam miraculously disappears. We are usually so irritated by the jam that we do not notice that the approach to jamming and the properties of the jammed state, in all of these situations, have common properties and similar behaviors that are quite different from those in systems near the liquid-solid transition. I will discuss recent ideas and results that point towards some quantitative commonality between such jamming transitions and one of the oldest and most perplexing phenomena in condensed matter physics, namely the glass transition. LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A8 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1263477600c8e90d91f2cb965ad01e5e7777fc1680@sns.ias.edu DTSTART:20100114T140000Z DTEND:20100114T220000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics Program: Frontiers of MHD - Day 2, "Relativistic MHD, Physics of Accretion" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 - Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1263564000fdf5ec705ceb0081f52148442785efb6@sns.ias.edu DTSTART:20100115T140000Z DTEND:20100115T220000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics Program: Frontiers of MHD - Day 3, "Relativistic MHD, Formation & Acceleration of Relativistic Jets" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 - Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12636504005b6842851f96dffb6ef04ba7167448eb@sns.ias.edu DTSTART:20100116T140000Z DTEND:20100116T220000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics Program: Frontiers of MHD - Day 4, "Non-ideal MHD, Radiation and Kinetics" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 - Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. For the program and to register, please visit: http://pcts.princeton.edu/pcts/relastro/relastro.html . LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12638196009e01433b6d8498dac583450e720edd5b@sns.ias.edu DTSTART:20100118T130000Z DTEND:20100118T130000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Workshop - Day 1, "Workshop on Opportunities in Plasma Astrophysics" (See all details at http:, /www.pppl.gov/conferences/2010/WOPA/) DESCRIPTION:*** Deadline for registration is January 8, 2010. **** The Program is to be posted. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1263835800f055d9734dd5dd758a48ea2661e7a9a0@sns.ias.edu DTSTART:20100118T173000Z DTEND:20100118T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion - LOCATION ADDED, "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. Attendees can bring their own lunch or are welcome to get lunch from the Woodrow Wilson Cafe, which is located on the first floor of Robertson Hall. The Woodrow Wilson Cafe serves lunches including a featured hot entree, panini, sandwich and salad specials in addition to tossed to order salads, made to order deli sandwiches and a selection of pre-made sandwiches and salads in the Grab-n-Go area. For today's menu - http://facilities.princeton.edu/dining/_Foodpro/location.asp . LOCATION:Princeton University, Robertson Hall, Room 011 (Lower Level) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1263906000a44d2db26014096255c47b8241896bd3@sns.ias.edu DTSTART:20100119T130000Z DTEND:20100119T130000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Workshop - Day 2, "Workshop on Opportunities in Plasma Astrophysics" (See all details at http:, /www.pppl.gov/conferences/2010/WOPA/) DESCRIPTION:*** Deadline for registration is January 8, 2010. **** The Program is to be posted. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126399240074cb350b9b14ceba8533060c3533d5c9@sns.ias.edu DTSTART:20100120T130000Z DTEND:20100120T130000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Workshop - Day 3, "Workshop on Opportunities in Plasma Astrophysics" (See all details at http:, /www.pppl.gov/conferences/2010/WOPA/) DESCRIPTION:*** Deadline for registration is January 8, 2010. **** The Program is to be posted. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1264008600b4c2c3a59e4780eee63a0ae8473d5029@sns.ias.edu DTSTART:20100120T173000Z DTEND:20100120T173000Z SUMMARY: Princeton University Wunch Talk - TITLE UPDATED, "Planetesimal and Protoplanet Dynamics in a Turbulent Protoplanetary Disk" (Chao-Chin Yang, University of Illinois at Urbana-Champaign, American Museum of Natural History) DESCRIPTION:n core accretion scenario of planet formation, kilometer-sized planetesimals are the building blocks toward planetary cores. Their dynamics, however, are strongly influenced by their natal protoplanetary gas disks. It is generally believed that these disks are turbulent, most likely due to magnetorotational instability. The resulting density perturbations in the gas render the movement of the particles a random process. Using the local-shearing-box approximation, we conduct numerical simulations of planetesimals moving in a turbulent, magnetized gas disk, either unstratified or vertically stratified. We statistically characterize the evolution of the orbital properties of the particles. These measurements result in accurate calibration of the random process of particle orbital change, indicating noticeably smaller magnitudes than predicted by global simulations, although the results may depend on the size of the shearing box. We apply these results to revisit the survivability of planetesimals under collisional destruction or protoplanets under type-I migration. Planetesimals are probably secure from collisional destruction, except for kilometer-sized objects situated in the outer regions of a young protoplanetary disk. On the other hand, we confirm earlier studies of local models in that type-I migration probably dominates diffusive migration due to stochastic torques for most planetary cores and terrestrial planets. Discrepancies in the derived magnitude of turbulence between local and global simulations of magnetorotationally unstable disks remains an open issue, with important consequences for planet formation scenarios. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1264014000b2823ec54f7c3e710f656cb401b80962@sns.ias.edu DTSTART:20100120T190000Z DTEND:20100120T190000Z SUMMARY:University of Pennsylvania Astrophysics Group Seminar, "Indirect Signals of the Nature of Dark Matter" (Kevork Abazajian, University of Maryland) DESCRIPTION: LOCATION:David Rittenhouse Laboratory (DRL) (209 South 33rd Street), Room A6 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1264078800bc6ae66fb5a929859cfc318ccd2c8bcf@sns.ias.edu DTSTART:20100121T130000Z DTEND:20100121T130000Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Workshop - Day 4, "Workshop on Opportunities in Plasma Astrophysics" (See all details at http:, /www.pppl.gov/conferences/2010/WOPA/) DESCRIPTION:*** Deadline for registration is January 8, 2010. **** The Program is to be posted. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12644442002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100125T183000Z DTEND:20100125T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Triaxial Dark Matter Halos: Observations, Theory and Implications" (Kathryn Johnston, Columbia University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126444780013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100125T193000Z DTEND:20100125T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Halo Alignments" (Discussion Leader Kathryn Johnston, Columbia University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. We'll cover halo alignments: Bailin et al, 2005, APJ 627 L17 and Bett et al, 2009, astro-ph/0906.2785. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1264613400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100127T173000Z DTEND:20100127T173000Z SUMMARY: Princeton University Wunch Talk, "Tidal Heating Models for the Radii of Inflated Transiting Extrasolar Giant Planets (EGPs)" (Laurent Ibgui, Princeton University) DESCRIPTION:The approximately 70 transiting extrasolar giant planets (EGPs) discovered so far offer a unique opportunity to test and improve the models of the structure and evolution of these bodies. Their mass and radius are inferred from a combination of radial velocity and transit lightcurve measurements that break the planet mass-inclination angle degeneracy. It turns out that some transiting EGPs have measured radii larger than predicted by the standard theory, which suggests the presence of an additional heat-source in the interiors of these "inflated planets." In this talk, I will present two tidal-heating scenarios that might explain this puzzle. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1264784400f38473b539db183f28491b11e338f885@sns.ias.edu DTSTART:20100129T170000Z DTEND:20100129T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TITLE ADDED, "QUIET" (Laura Newburgh, Columbia University) DESCRIPTION:The Q/U Imaging Experiment (QUIET) is a ground-based CMB polarization experiment observing angular scales where the polarization spectrum from inflationary gravity waves is predicted to be maximal. QUIET operates at two frequency bands centered at 40 GHz and 90 GHz. The 40 GHz receiver was deployed in 2008 at 5100m altitude in the Atacama Desert, Chile, and has finished data collection, logging over 3500 hours on the sky and covering ~1200 square degrees. The 90 GHz receiver was deployed on the same telescope and began taking data in July 2009. I will present an instrument overview and the status of data analysis from the 40 GHz season. [See hoagie list: http://www.physics.princeton.edu/cosmology/journalclub/hoagie/list.php?event_id=340.] LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265045400f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100201T173000Z DTEND:20100201T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12650490002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100201T183000Z DTEND:20100201T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "A Tale of Tails: Simulations of the Environmentally-Driven Evolution of Cluster Galaxies" (Stephanie Tonnesen, Columbia University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126505260055b9bc3f3e90ba2fa31b43956c4e0454@sns.ias.edu DTSTART:20100201T193000Z DTEND:20100201T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - SPEAKER CHANGED, "Pseudobulge" (Jenny Greene, Discussion Leader, Princeton University) DESCRIPTION:I will cover the following: http://adsabs.harvard.edu/abs/2009ApJ...697..630F and http://adsabs.harvard.edu/abs/2009arXiv0911.2231F . LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265131800351bcf35e9a82cbd5177a6c41cfb6f8e@sns.ias.edu DTSTART:20100202T173000Z DTEND:20100202T173000Z SUMMARY:Princeton University Department of Geosciences Seminar - ROOM CHANGED, "Satellite Formation" (Robin Canup, Southwest Research Institute) DESCRIPTION:Lunch Served at 12 noon - outside of Room 10. LOCATION:Guyot Hall, Room 10 (UPDATED) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265146200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100202T213000Z DTEND:20100202T213000Z SUMMARY:Princeton University Astronomy Colloquium, "The Darkest Galaxies" (Marla Geha, Yale University) DESCRIPTION:In the past several years, fourteen Milky Way satellite galaxies havebeen discovered, more than doubling the known population. These newlydiscovered ``ultra-faint'' galaxies have emerged as the least luminousand most dark matter-dominated galaxies in the known Universe. Theyare dramatically reshaping our understanding of galaxy formation andmay hold the keys to deciphering the nature of dark matter. I willreview our current understand of the ultra-faint galaxies, focusing onthe constraints these objects provide on dark matter. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265218200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100203T173000Z DTEND:20100203T173000Z SUMMARY: Princeton University Wunch Talk, "The Nature of the Stellar Moving Groups in the Solar Neighborhood" (Jo Bovy, New York University) DESCRIPTION:The origin of moving groups, associations of comoving stars in the Solar neighborhood, has elucidated astronomers for more than a century. The astrometric Hipparcos mission dramatically increased the amount of kinematic data to study these moving groups. I will show how we can identify moving groups and large numbers of their members in the Hipparcos data set, even in the absence of line-of-sight velocities. I will discuss how we can use these large samples of moving-group members to test common explanations for their formation such as inhomogeneous-star-formation relics and dynamical effects related to the bar or spiral structure. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126523170039a59f2ea4b62345e243fd7e6786d0d9@sns.ias.edu DTSTART:20100203T211500Z DTEND:20100203T211500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Collioquia, "A Magnetic Reconnection Mechanism for the Generation of Anomalous Cosmic Rays" (James Drake, University of Maryland) DESCRIPTION:Any non-PPPL people interested in attending should see this site for more information: http://www.pppl.gov/visiting.cfm .Refreshments are at 4:00 pm, seminar is at 4:15 pm. Anomalous cosmic rays (ACRs) are ions with energy in the range of 10- 100MeV/nucleon with abundances that reflect that of the local interstellar medium. These particles are believed to be accelerated in the outer heliosphere. The recent observations of the anomalous cosmic ray energy spectrum as Voyagers 1 and 2 spacecraft crossed the heliospheric termination shock have called into question the conventional shock source of these energetic particles. I will discuss a new model in which the sectored heliospheric magnetic field, which results from the flapping of the heliospheric current sheet, undergoes magnetic reconnection and produces the ACR spectrum. The sectored heliospheric magnetic field piles up as it approaches the heliopause, narrowing the current sheets that separate the sectors and triggering the onset of collisionless magnetic reconnection. Particlein- cell simulations reveal that most of the magnetic energy goes into energetic ions with significant but smaller amounts of energy going into electrons. The most energetic ions gain energy as they reflect from contracting magnetic islands, a first order Fermi acceleration process. An analytic model is constructed in which the Fermi drive is balanced by convective loss. The ACR differential energy spectrum takes the form of a power law with a spectral index slightly above 1.5. The model can explain several key ACR observations, including the similarities in the spectra of different ion species. The results have broad implications for understanding the role of magnetic reconnection in driving particle acceleration throughout the universe. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126538920022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20100205T170000Z DTEND:20100205T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Stability In and of de Sitter Space" (Ben Shlaer, Tufts University) DESCRIPTION:The Coleman - De Luccia instanton is known to mediate bubble nucleation in curved spacetime. I will present evidence that this is not the case in de Sitter space. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12654036003715e725dad23bf9480bb9d1ed7fcc6a@sns.ias.edu DTSTART:20100205T210000Z DTEND:20100205T210000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology SPECIAL SEMINAR, "Cosmography to z ∼ 6 with Coincident Gravitational Wave and Electromagnetic Observations" (Sean McWilliams, NASA) DESCRIPTION:Several authors have estimated the achievable parameter accuracy from measuring the gravita- tional wave (GW) signature of an inspiraling supermassive black hole binary with the Laser In- terferometer Space Antenna (LISA), with the most recent work including the final merger in the calculation for nonspinning binaries by using results from numerical relativity. Separately, much work has gone into estimating the possible timescales over which an electromagnetic (EM) signa- ture might accompany the GW signal. A coincident GW/EM measurement could be used as a "standard siren" for constraining the dark energy equation of state, analogous to using type Ia supernovae as standard candles. These estimates have predominantly assumed an initially thin alpha-disc model that has been hollowed out by torque from the binary, and have calculated the evolution in a pseudo-Newtonian potential. However, since accretion disks supported by torque from the inspiralling binary will likely become marginally thick, the actual evolution of the inner disk will likely be dominated by the magneto-rotational instability (MRI), so it has not been clear how accurate these previous estimates would prove to be. I will present our work on constraining the source location with complete inspiral-merger-ringdown GW signals, including higher harmonic signal content. I will also discuss potential mechanisms for EM counterparts to accompany the GW observation, and will present my recent work simulating the evolution of an initially hollow, moderately thick accretion disk using axisymmetric general relativistic magneto-hydrodynamic sim- ulations, and the substantial difference in the predicted timescale for the onset of a detectable EM counterpart signal compared to previous estimates. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265650200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100208T173000Z DTEND:20100208T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12656538002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100208T183000Z DTEND:20100208T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Chemical Enrichment of the Primeval IGM by the First Supernovae" (Daniel Whalen, Carnegie-Mellon University) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265657400d743eb3d056709f71d92cffa8a1c352c@sns.ias.edu DTSTART:20100208T193000Z DTEND:20100208T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - CANCELED DESCRIPTION: LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265751000925120d4b578854d92a1390e25bfdf51@sns.ias.edu DTSTART:20100209T213000Z DTEND:20100209T213000Z SUMMARY:Princeton University Astronomy Colloquium - TITLE UPDATED, "Advances in Galactic Cartography" (Robert A. Benjamin, University of Wisconsin) DESCRIPTION:A reception will follow at 5:30pm in the Grand Central Room. ABSTRACT: The Milky Way Galaxy is one of the few galaxies, and the only edge-on spiral galaxy that can be resolved in detail. But it has been a decades-long slog to try to determine its structure and ascertain how it would look to an outside observer. Although great progress has been made in understanding the Galactic bar and central molecular zone in the last few decades, a reliable understanding of the spiral structure has eluded us for a long time. For several reasons, that is about to change. I review these advances in Galactic cartography, with an emphasis on mapping of the Galactic stellar disk and bar with a standard candle using data from GLIMPSE, 2MASS, and UKIDSS. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1265823000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100210T173000Z DTEND:20100210T173000Z SUMMARY: Princeton University Wunch Talk, "The Rise and Fall of Passive Disk Galaxies" (Kevin Bundy, University of California-Berkeley) DESCRIPTION:The tranformation of blue, star-forming disk galaxies into red and dead spheroidals is one of the most important features of galaxy evolution since z=1-2. This mass- dependent growth of the "red sequence" has been the subject of many studies, and yet we still lack a convincing picture of the physical processes involved. New insight can be gained, however, by revisiting the assumed link between morphology and star formation. Specifically, I will show how large galaxy surveys are now revealing a significant population of quenched, red-sequence galaxies with surprising disk-like morphologies. These passive disks typically have large bulges but are not confined to dense environments. They represent as much as one-half of all red-sequence galaxies and dominate at lower masses (log Mstar < 10). Their evolving abundance compared to other populations suggests that as much as 60% of galaxies transitioning onto the red sequence evolve through a passive disk phase. Simple fading of blue disks is not able to explain their origin, and mergers (possibly inducing AGN feedback) should destroy the disk. I will discuss several other explanations, including environmental effects, internal stabilization, and disk regrowth during gas-rich mergers. Instead of red-sequence growth driven by a single transformation process, this work highlights the fact that galaxy evolution may actually be shaped by several processes proceeding through separate stages. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12659238008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100211T213000Z DTEND:20100211T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Graphene: A Relativistic Electron in Carbon Flatland" (Eva Andrei, Rutgers, The State University of New Jersey) DESCRIPTION:The discovery and synthesis of graphene, a one-atom thick membrane of crystalline Carbon, has opened an extraordinary arena for new physics and applications stemming from charge carriers that are governed by quantum-relativistic dynamics. I will review the physical properties of this material and present recent experimental results obtained with scanning tunneling microscopy and magneto-transport which provided access to the unusual charge carriers in graphene. The findings include direct observation of the Landau level energy spectrum that governs the motion of charge carriers in a magnetic field, observation of the fractional quantum Hall effect and a magnetically induced insulating phase. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126599400022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20100212T170000Z DTEND:20100212T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "1 - TBA" (1 - Lucas Parker, Princeton University Physics Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126599400022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20100212T170000Z DTEND:20100212T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "2 - TBA" (2 - Guilherme Pimentel, Princeton University Physics Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266253200d9365195851584f51ebdb73d367dce01@sns.ias.edu DTSTART:20100215T170000Z DTEND:20100215T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - CANCELED, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12662550001d4357d162a3eed51addc84649274fd7@sns.ias.edu DTSTART:20100215T173000Z DTEND:20100215T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion - CANCELED, "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266258600e77bda4372ad2f537c7f0395e179a5c0@sns.ias.edu DTSTART:20100215T183000Z DTEND:20100215T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar - CANCELED, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266262200dda34e6dab0273f7443e83b3b823edb9@sns.ias.edu DTSTART:20100215T193000Z DTEND:20100215T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group]- CANCELED, "TBA" (Claire Lackner, Discussion Leader) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266355800c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100216T213000Z DTEND:20100216T213000Z SUMMARY:Princeton University Astronomy Colloquium, "The Remarkable History of Massive Galaxies" (Pieter Van Dokkum, Yale University) DESCRIPTION:In the nearby Universe massive galaxies form a veryhomogeneous population, as they are almost without exception old, red early-type galaxies. However, recent observations have demonstrated that this has not always been the case: about 10 billion years ago they showed a great diversity, ranging from large star forming systems to extremely compact quiescent galaxies. I will review these results, and also discuss new observations of the growth of massive galaxies over the past 10 billion years from the NEWFIRM Medium Band Survey (NMBS). Data coming from surveys such as the NMBS now provide a robust picture of galaxygrowth; aspects of this growth have been predicted by galaxy formationmodels but it is not yet clear whether the key physical mechanismshave been identified. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266427800d598e09c622feba1ac295d77259d974b@sns.ias.edu DTSTART:20100217T173000Z DTEND:20100217T173000Z SUMMARY: Princeton University Wunch Talk - TITLE ADDED, "The SWARMS Survey: Unveiling the Galactic population of Compact White Dwarf Binaries" (Carles Badenes, Tel-Aviv University) DESCRIPTION:I will describe the goals and strategy of the SWARMS survey, a data mining project designed to find the double degenerate progenitors of Type Ia Supernovae. SWARMS takes advantage of the multiple spectra of thousands of white dwarfs collected by the Sloan Digital Sky Survey. The first results include the two noninteracting white dwarf binaries with the shortest known periods and a system that might contain the closest neutron star to Earth. I will examine the implications of these discoveries and discuss the potential for future developments. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126652860019d25b36a30fd9fc76f57fb4b4c2dfdb@sns.ias.edu DTSTART:20100218T213000Z DTEND:20100218T213000Z SUMMARY:Princeton University Department of Physics Colloquium - TITLE ADDED, "Self-Replication Without Life (Yet)" (Paul Chaikin, New York University) DESCRIPTION:We want to make a "non-biological" system which can self-replicate. The idea is to design particles with specific and reversible and irreversible interactions, introduce seed motifs, and cycle the system in such a way that a copy is made. Repeating the cycle would double the number of offspring in each generation leading to exponential growth. Using the chemistry of DNA either on colloids or on DNA tiles makes the specific recognition part easy. In the case of DNA tiles we have in fact replicated the seed at least to the third generation. The DNA linkers can also be self-protected so that particles don't interact unless they are held together for sufficient time - a nano-contact glue. We have also designed and produced colloidal particles that use novel "lock and key" geometries to get specific and reversible physical interactions. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266598800b3edaf32292ec367a2887f8c69cbea55@sns.ias.edu DTSTART:20100219T170000Z DTEND:20100219T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - SPEAKER 1 ADDED, "1 - SPIDER: Receiver Design and Science Prospects" (1 - Alexandra Rahlin, Princeton University) DESCRIPTION:I will discuss the SPIDER instrument, including the science goals for the test and long-duration flights, the receiver design, and expected sensitivities. I will focus in particular on the components unique to SPIDER, namely the planar antenna arrays, optics and half-wave plate, and how these will help mitigate systematic effects. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266598800549063689a7aabf844176ee17fd3d2b7@sns.ias.edu DTSTART:20100219T170000Z DTEND:20100219T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - SPEAKER 2, "2 - Small Steps and Giant Leaps in the Landscape" (2 - Alex Dahlen, Princeton University Physics Graduate Student) DESCRIPTION:You might expect that if you start with a wavefunction localized in one of many minima, that the most likely place for it to tunnel is to nearby minima. But then you would be wrong, and I will prove it. In fact, sometimes the most likely thing to do is to take a giant leap to a distant minimum. [Note: apologiesa recent HET seminar with the same name by the same speaker was in fact the same talk. But this time the slides are a little prettier.]. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266859800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100222T173000Z DTEND:20100222T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12668634002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100222T183000Z DTEND:20100222T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Gas Accretion onto Halos and Galaxies" (Yuval Birnboim, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. As gas is accreted into halos of galaxies and clusters itsgravitational energy is converted into thermal energy. This process usually involves strongshocks ("virial shocks"). I will discuss the stability of virialshocks in the presence of significant cooling, and show that whenhalos are smaller than ~1012 solar masses the halo gas cannot be inhydrostatic equilibrium around galaxies. Rather, accreted gas willfree-fall until it hits the galaxies. In some conditions, coldfilaments will survive within a hot, diffuse halo. This scenario hasimplications on galaxy attributes, and in particular thecolor-magnitude bi-modality of galactic population observed in SDSS. I will then discuss how non-smooth accretion onto clusters of galaxycan affect the overcooling of clusters. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126686700013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100222T193000Z DTEND:20100222T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Lensing + Dynamics as a Way of Constraining Halo Masses/IMF" (Claire Lackner Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. Galread mailing list:http://adsabs.harvard.edu/abs/2010ApJ...709.1195T and http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:0911.2260. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1266960600c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100223T213000Z DTEND:20100223T213000Z SUMMARY:Princeton University Astronomy Colloquium, "Beyond the M-sigma Relation: The Role of Black Holes in Galaxy Evolution" (Jenny Greene, Princeton University) DESCRIPTION:Supermassive black holes (BHs) are a ubiquitous component of nearby galaxies, and we believe that BH growth plays an important role in galaxy evolution. I discuss three projects, each designed to elucidate the role of BH growth in galaxy evolution. I begin with a new look at local BH-bulge scaling relations provided by a large sample of spiral galaxies containing megamaser disks. The resulting exquisite BH mass measurements provide strong evidence that BHs evolve differently in low-mass spiral galaxies. Second, studies of BH demographics as a function of cosmic time provide complementary constraints on the coevolution of BHs and galaxies. I discuss ongoing efforts to use active galaxies as a tracer of the BH population at high redshift. Finally, I present an exciting new sample of dual BHs uncovered with Magellan. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1267032600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100224T173000Z DTEND:20100224T173000Z SUMMARY: Princeton University Wunch Talk, "Observational Signatures of Compact Object Mergers" (Brian Metzger, Princeton University) DESCRIPTION:The inspiral and coalescence of tight neutron star (NS) and black hole (BH) binaries are thought to be among the most promising sources for the direct detection of gravitational waves (GWs) with ground-based interferometers such as LIGO and Virgo. Optimizing the benefits of a GW detection will, however, require identifying a coincident electromagnetic (EM) signal. One possible source for EM emission from NS-NS/NS-BH mergers is a short-duration gamma-ray burst (GRB), powered by the accretion of material that remains in a centrifugally-supported torus around the BH following the merger. I will review the theoretical and observational status of the connection between short GRBs and NS-NS/NS-BH mergers, focusing in particular on models for the viscous and thermal evolution of the remnant disk, and on the puzzling discovery that many short GRBs are followed by extended X-ray flaring lasting for roughly 100 seconds after the GRB. This extended emission is difficult to understand within the standard merger paradigm and may require modifying or considering alternative short GRB progenitor models. Another mechanism for producing EM emission from NS-NS/NS-BH mergers is via a supernova-like optical transient powered by the radioactive decay of heavy nuclei synthesized in neutron-rich merger ejecta. I will present the first calculations of the radioactively-powered transients from mergers that include both realistic nuclear physics and radiative transport. I will discuss the prospects for their detection and identification with present and upcoming optical transient surveys via GW follow-up, or even independent of a GW trigger. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126704610039a59f2ea4b62345e243fd7e6786d0d9@sns.ias.edu DTSTART:20100224T211500Z DTEND:20100224T211500Z SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Collioquia, "Magnetic Records of Meteorites and Early Planetesimal Dynamos" (Benjamin Weiss, Massachusetts Institute of Technology) DESCRIPTION:Any non-PPPL people interested in attending should see this site for more information: http://www.pppl.gov/visiting.cfm .Refreshments are at 4:00 pm, seminar is at 4:15 pm. Several classes of meteorites that formed during the first stages of planetary evolution may recordthe early history of differentiation and possibly even magnetic field generation in planetesimal cores.We have been conducting paleomagnetic analyses on angrites, among the oldest known pristinebasaltic meteorites, and the CV carbonaceous chondrite Allende, traditionally thought to sample anundifferentiated body. We found that angrites record a past magnetic field of ~10 microteslas on theirparent body extending from 4564 to at least 4558 million years (Ma) ago. Allende, which acquiredits magnetization over millions of years at least 10 Ma after accretion of the CV parent body, recordsfields of similar intensity. Because the angrite and Allende paleomagnetic records extend beyond theexpected lifetime of the early circumstellar disk, these paleofields were probably generated internallyon the parent bodies, possibly by early dynamos in rapidly formed metallic cores. In particular, theCV parent planetesimal may be a partially differentiated body with an unmelted, relic chondritic surfacethat was magnetized during metasomatism in the presence of an interior metallic core dynamo.Planetesimal core dynamos may have been widespread but short-lived phenomena in the early solarsystem. LOCATION:Princeton Plasma Physics Laboratory, Melvin B. Gottlieb Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12671334008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100225T213000Z DTEND:20100225T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Is Physical Reality "The Matrix"?" (Jim Gates, University of Maryland) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1267203600f38473b539db183f28491b11e338f885@sns.ias.edu DTSTART:20100226T170000Z DTEND:20100226T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TITLE ADDED, "Detection of Burst Gravitational Radiation Sources in a Pulsar Timing Array" (Andrea Lommen, Franklin & Marshall College) DESCRIPTION:Efforts to detect directly gravitational waves by timing an array of pulsars have focused traditionally on continuous-wavesources: e.g., a stochastic gravitational wave signal or the signal from a binary system. Gravitational wave bursts --- i.e., signals whose duration is much shorter than the observation period --- with significant strength in the <10microHZ band also leave an impression in pulsar timing residuals, which may be revealed by correlating the timing residuals of different pulsars. Example gravitational wave sources that may be detectable in this way include the formation or coalescence of supermassive black holes (SMBHs), the periapsis passage of compact objects in highly elliptic or hyperbolic orbits about a SMBH, or by cusps on cosmic strings. We describe how data from a pulsar timing array may be analyzed to detect and characterize gravitational wave bursts and assess the sensitivity of the current international pulsar timing array to gravitational waves from sources like these. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126720540066e9fb7cf8cffc6f3c7d3df0f0739b18@sns.ias.edu DTSTART:20100226T173000Z DTEND:20100226T173000Z SUMMARY:Princeton University Astroplasma Seminar, "An MHD Model for the Formation of Episodic Jets" (Feng Yuan, Shanghai Observatory) DESCRIPTION: LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12674628009e766c8a504dbd9bfaf774202180e0bb@sns.ias.edu DTSTART:20100301T170000Z DTEND:20100301T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - SPEAKER ADDED, "1 - Interstellar Comets" (1 - Ed Turner, Princeton University) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner, Mike McElwain, Cullen Blake and David Spiegel are the organizers. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12674628009e766c8a504dbd9bfaf774202180e0bb@sns.ias.edu DTSTART:20100301T170000Z DTEND:20100301T170000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group - SPEAKER ADDED, "2 - Transiting Compact Objects from Kepler" (2 - Cullen Blake, Princeton University) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner, Mike McElwain, Cullen Blake and David Spiegel are the organizers. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1267464600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100301T173000Z DTEND:20100301T173000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12674682002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100301T183000Z DTEND:20100301T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "Cosmology from Non-Linear Weak Lensing Statistics" (Zoltan Haiman, Columbia University) DESCRIPTION:Renyue Cen is the organizer. Abstract: Several large astronomical surveys have either been proposedor are underway to measure weak lensing distortions of millions ofgalaxies over a large fraction of the sky. The linear features ofsuch large cosmic shear sky maps (such as the power spectrum on largescales) are expected to be treasure-troves of cosmology. In general,non--linear features of the maps also depend on cosmology, and could,in principle, provide significant additional information. Based onour recent pilot study using N-body simulations in three differentcosmologies, I will discuss projected cosmological constraints fromthe one-point function (i.e., the fractional area of high shearregions), from the number counts of shear peaks (i.e. from the numberof maxima as a function of their height), and from more elaboratestatistics (such as Minkowski functionals). LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126747180053c546d096d7ff232810aeffc784fcb0@sns.ias.edu DTSTART:20100301T193000Z DTEND:20100301T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group]- PAPERS ADDED, "Binary/Dual AGNs" (Xin Liu Discussion Leader, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. Xin will talk about her work looking for binary/dual AGNs. She will coverthe following two papers:Green, Myers et al. 2010Volonteri, Miller, and Dotti 2009but see alsoLiu et al. 2009Dotti, Ruszkowski et al. 2009.Here are the links:Green, Myers et al. 2010http://adsabs.harvard.edu/abs/2010ApJ...710.1578GVolonteri, Miller, and Dotti 2009http://adsabs.harvard.edu/abs/2009ApJ...703L..86V---(see also Dotti, Ruszkowski et al. 2009http://adsabs.harvard.edu/abs/2009MNRAS.396.1640Dfor more on digging into SDSS fortune, seehttp://adsabs.harvard.edu/abs/2010ApJ...708..427Landhttp://adsabs.harvard.edu/abs/2009arXiv0908.1998S). LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1267565400c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100302T213000Z DTEND:20100302T213000Z SUMMARY:Princeton University Astronomy Colloquium, "The Last Eight Billion Years of Galaxy Growth" (Mike Blanton, New York University Astronomy) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1267637400d2c0133610e6c25502bfb49cb6d5a2a6@sns.ias.edu DTSTART:20100303T173000Z DTEND:20100303T173000Z SUMMARY: Princeton University Wunch Talk - ABSTRACT ADDED, "Cosmic Rays and Magnetic Fields in Clusters of Galaxies" (Doron Kushnir, Weizmann Institute of Science) DESCRIPTION:Cosmic Rays and Magnetic Fields in Clusters of Galaxies We derive constrains on the relativistic particle population and magnetic fields in clusters of galaxies and in the accretion shocks surrounding them, based on various observations. We argue that the observed correlation between the radio luminosity and the X-ray luminosity in radio emitting galaxy clusters implies that the radio emission is due to secondary electrons that are produced by p-p interactions and lose their energy by emitting synchrotron radiation in a strong magnetic field, $B>(8\pi aT_{CMB}^4)^{1/2}\simeq3\muG$. We construct a simple model that naturally explains the correlation, and show that the observations provide stringent constraints on cluster magnetic fields and cosmic rays (CRs): Within the cores of clusters, the ratio $\beta_{core}$ between the CR energy (per logarithmic particle energy interval) and the thermal energy is $\beta_{core}\sim 10^{-4}$; The source of these CRs is most likely the cluster accretion shock, which is inferred to deposit in CRs $\gtrsim 1\%$ of the thermal energy it generates; The diffusion time of 100~GeV CRs over scales $\gtrsim100$~kpc is not short compared to the Hubble time; Cluster magnetic fields are enhanced by mergers to $\gtrsim 1\%$ of equipartition, and decay (to $<1\muG$) on $1\,\textrm{Gyr}$ time scale. We argue that the hard X-ray (HXR) luminosity of galaxy clusters is produced by inverse Compton (IC) scattering of CMB photons by electrons accelerated in accretion shocks. We find that this luminosity exceed the luminosities produced by secondary particles by a factor of $\simeq10^3(\eta_e/\eta_p)(T/10{\rm keV})^{-1/2}$, where $T$ is the cluster temperature and $\eta_{p(e)}$ is the fraction of the thermal energy generated in strong collisionless shocks, which is deposited in CR protons (electrons). Simple arguments for the mass accretion rate of galaxy clusters allows us to derive constraints on $\eta_{e}$.The implications of our predictions to future HXR observations (e.g. NuStar, Simbol-X) and $\gamma$-ray observations (with space-borne, e.g. Fermi, and ground based, e.g. HESS, MAGIC, VERITAS, telescopes) are discussed. The inferred value of $\beta_{core}$ implies that high energy gamma-ray emission from secondaries at cluster cores will be difficult to detect with existing and planned instruments. However, the inferred value of $\eta_{e}$ implies that the $\gamma$-ray emission from clusters of galaxies is extended and can be detected easily in future observations. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12677382008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100304T213000Z DTEND:20100304T213000Z SUMMARY:Princeton University Department of Physics Colloquium, "Cosmological Highlights from the Sloan Digital Sky Survey" (David Weinberg, The Ohio State University and Institute for Advanced Study) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126780840022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20100305T170000Z DTEND:20100305T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "Cosmological Non Linearities as an Effective Fluid" (Matias Zaldarriaga, Institute for Advanced Study) DESCRIPTION:The Universe on small scales is inhomogeneous. I will show that on large scales the inhomogeneities can be represented as an effective fluid. I will discuss the phenomenological consequences. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12680676008f868746fff6cfbbf0a7b3f4a1aba07f@sns.ias.edu DTSTART:20100308T170000Z DTEND:20100308T170000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion - NOTE NEW START TIME, "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268073000e77bda4372ad2f537c7f0395e179a5c0@sns.ias.edu DTSTART:20100308T183000Z DTEND:20100308T183000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar - CANCELED DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268076600d743eb3d056709f71d92cffa8a1c352c@sns.ias.edu DTSTART:20100308T193000Z DTEND:20100308T193000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group] - CANCELED (CANCELED) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION: COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268170200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100309T213000Z DTEND:20100309T213000Z SUMMARY:Princeton University Astronomy Colloquium, "Inflationary Cosmology on Trial" (Paul Steinhardt, Princeton Center for Theoretical Science) DESCRIPTION:This talk will be a perspective on the status of the inflationary model of the universe as it stands today and the challenges it faces. LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268242200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100310T173000Z DTEND:20100310T173000Z SUMMARY: Princeton University Wunch Talk, "The Age Distribution of Type Ia Supernova Progenitors" (Tim Brandt, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12683430006ec755a42be90933741bf7e4985e5974@sns.ias.edu DTSTART:20100311T213000Z DTEND:20100311T213000Z SUMMARY:Princeton University Department of Physics Colloquium - TITLE CHANGED, "Quark Gluon Plasma: From Particles to Fields?" (Barbara Jaczak, Stony Brook University) DESCRIPTION:Quantum chromodynamics predicts melting of hadrons into a plasma of quarks and gluons at high temperature and/or density. High energy collisions of heavy ions at RHIC create matter at a temperature above 300 MeV, which is too hot for normal hadrons to exist. This matter is found to have some surprising properties. It flows as a perfect, exceedingly opaque liquid. It appears to be strongly coupled, flowing in a similar way as cold dense atoms, with phases similar to some condensed matter systems and dense electromagnetic plasmas. Quantitative reproduction of the observed properties presents a major challenge to perturbative QCD. New theoretical and experimental approaches are underway to understand the screening, correlations, fluctuations, and underlying degrees of freedom in strongly coupled QCD matter. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126841320022f112629c84f597b1c327d1bd26c346@sns.ias.edu DTSTART:20100312T170000Z DTEND:20100312T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch, "1 - Numerical Simulation of Neutron Star Collisions" (1 - William East, Princeton University Physics Graduate Student) DESCRIPTION:I will discuss the challenges and methods of simulating hydrodynamics coupled to Einstein gravity. I will focus on work towards simulating the head on collision of neutron stars at ultra-relativistic speeds. LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268413200f38473b539db183f28491b11e338f885@sns.ias.edu DTSTART:20100312T170000Z DTEND:20100312T170000Z SUMMARY:Princeton University Gravity Group Astrophysics/Cosmology Lunch - TITLE ADDED, "2 - Measuring Baryon Acoustic Oscillations with 21 cm Intensity Mapping" (2 - Katerina Visnjic, Princeton University Physics Graduate Student) DESCRIPTION: LOCATION:Jadwin Hall, Room 102 (Joe Henry Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126841500066e9fb7cf8cffc6f3c7d3df0f0739b18@sns.ias.edu DTSTART:20100312T173000Z DTEND:20100312T173000Z SUMMARY:Princeton University Astroplasma Seminar, "An MHD Model for the Formation of Episodic Jets" (Feng Yuan, Shanghai Observatory) DESCRIPTION: LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268668800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100315T160000Z DTEND:20100315T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268668800787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100315T160000Z DTEND:20100315T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12686742002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100315T173000Z DTEND:20100315T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126867780013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100315T183000Z DTEND:20100315T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "Mapping the Distribution of Star Formation in Galaxies" (Reina Reyes, Princeton University) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1268843400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100317T163000Z DTEND:20100317T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Brian Jackson, Goddard Space Flight Center) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269273600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100322T160000Z DTEND:20100322T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12692790002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100322T173000Z DTEND:20100322T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126928260013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100322T183000Z DTEND:20100322T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269376200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100323T203000Z DTEND:20100323T203000Z SUMMARY:Princeton University Astronomy Colloquium, "The Different Life Cycles of Galaxies" (Mariska Kriek, Princeton University) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269448200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100324T163000Z DTEND:20100324T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Renyue Cen, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12695490008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100325T203000Z DTEND:20100325T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "Tiny Conspiracies: Cell-to-Cell Communication in Bacteria" (Bonnie Bassler, Princeton University) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269878400f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100329T160000Z DTEND:20100329T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269878400787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100329T160000Z DTEND:20100329T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12698838002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100329T173000Z DTEND:20100329T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:126988740013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100329T183000Z DTEND:20100329T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269981000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100330T203000Z DTEND:20100330T203000Z SUMMARY:Princeton University Astronomy Colloquium DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1269981000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100330T203000Z DTEND:20100330T203000Z SUMMARY:Princeton University Astronomy Colloquium, "The Baryonic Mass-to-light Ratio in Elliptical Galaxies Measured from the Static Gravitational Micro-lensing of Multiply Imaged Quasars" (Paul Schechter, Massachusetts Institute of Technology) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12700530006b0e6d54a43e17202084e8d22df7f8ee@sns.ias.edu DTSTART:20100331T163000Z DTEND:20100331T163000Z SUMMARY:Princeton University National Astronomy Budget FY 2011 Talk, "The National Astronomy Budget FY 2011" (Anita Krishnamurthi, John Bahcall Public Policy Fellow, American Astronomical Society) DESCRIPTION:We will take Anita to lunch after the talk; please let me know if you want to join. If you want to talk with Anita in the afternoon on March 31st, please let me know what times are good for you. - Neta Bahcall. LOCATION:Peyton Hall, Room 33 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12701538008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100401T203000Z DTEND:20100401T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "The Widefield Infrared Survey Explorer - WISE" (David Saxon, University of California, Los Angeles) DESCRIPTION:The Widefield Infrared Survey Explorer (WISE) is a NASA Medium Explorer (MIDEX) currently surveying the entire sky in 4 mid-infrared bands at 3.4, 4.6, 12 and 22 microns with vastly greater sensitivity than previous all-sky surveys at these wavelengths. WISE will observe everything that is further from the Sun than the Earth, and this includes minor planets, comets, nearby brown dwarfs and star forming regions both in the Milky Way and in distant galaxies. The WISE long wavelength channels will be very powerful for detecting Ultra-Luminous Infrared Galaxies, and WISE should detect the most luminous galaxies in the Universe. The WISE short wavelength channels will be very powerful for detecting old cold brown dwarfs, and WISE should detect the nearest brown dwarfs to the Sun. WISE will also measure the radiometric diameters of about 250,000 asteroids. WISE has a 40 cm cryogenic telescope, 1024x1024 arrays, a scan mirror to freeze images on the arrays while the spacecraft scans continuously, and will take 47'x47' images every 11 seconds in all four bands from an IRAS/COBE style Sun-synchronous nearly polar low Earth orbit. WISE launched from Vandenberg Air Force Base on 14 Dec 2009, ejected its cover on 29 Dec 2009, and entered routine survey operations on 14 Jan 2010. WISE is on track to have taken over a half million four-band images by the time this talk is given. LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12702996001ec529d449180bbe7b9303b79ee39524@sns.ias.edu DTSTART:20100403T130000Z DTEND:20100403T210000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics - Day 2, "Computational Relativistic Astrophysics" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO. Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1270483200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100405T160000Z DTEND:20100405T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12704886002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100405T173000Z DTEND:20100405T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127049220013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100405T183000Z DTEND:20100405T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1270585800c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100406T203000Z DTEND:20100406T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Tales from Tails - Science Enabled by Large Scale Stellar Surveys" (Kathryn Johnston, Columbia University) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1270657800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100407T163000Z DTEND:20100407T163000Z SUMMARY: Princeton University Wunch Talk, "Women (and Other Minorities) in Science and Engineering - A Personal Perspective" (Kathryn Johnston, Columbia University) DESCRIPTION:This "talk" consists of a set of slides summarizing what I have learnt (through committee work and attending talks) about the social and psychological science literature that might be relevant to understanding the slow progress of women in science. My intention is not to give a thorough review (my field is Local Group Science, not psychology!), but rather use the slides as a starting point for discussion. LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271088000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100412T160000Z DTEND:20100412T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271088000787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100412T160000Z DTEND:20100412T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12710934002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100412T173000Z DTEND:20100412T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127109700013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100412T183000Z DTEND:20100412T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271190600c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100413T203000Z DTEND:20100413T203000Z SUMMARY:Princeton University Astronomy Colloquium, "TBA" (Alexey Vikhlinin, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271262600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100414T163000Z DTEND:20100414T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Phil Hopkins, University of California at Berkeley) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12713634008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100415T203000Z DTEND:20100415T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "TBA" (TBA) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271692800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100419T160000Z DTEND:20100419T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12716982002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100419T173000Z DTEND:20100419T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127170180013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100419T183000Z DTEND:20100419T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271795400c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100420T203000Z DTEND:20100420T203000Z SUMMARY:Princeton University Astronomy Colloquium, "The Centers of Galaxies" (Scott Tremaine, Institute for Advanced Study) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271867400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100421T163000Z DTEND:20100421T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Nevin Weinberg, University of California, Berkeley) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1271941200302cb2a00eb0475ea2c0e12d6ef401d3@sns.ias.edu DTSTART:20100422T130000Z DTEND:20100422T210000Z SUMMARY:Princeton University Princeton Center for Theoretical Science - Computational Relativistic Astrophysics - Day 1, "Computational Relativistic Astrophysics" (See the PCTS web site: http:, /pcts.princeton.edu/pcts/relastro/relastro.html) DESCRIPTION:Computational Relativistic Astrophysics: 2009-2010 Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einstein's theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO. Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics. LOCATION:Jadwin Hall, Seminar Room 407, 4th floor COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12719808007391e313cb539ee74d0b0eac61ce864c@sns.ias.edu DTSTART:20100423T000000Z DTEND:20100423T000000Z SUMMARY:Princeton University Sackler Lecture in Astrophysics / Princeton Center for Theoretical Science - Big Bang and Beyond Program Public Lecture, "TBA" (Roger Blandford, Kavli Institute for Particle Astrophysics, Stanford University) DESCRIPTION:PCTS LONG PROGRAM 2000-2010: "Computational Relativistic Astrophysics". Note: The public lecture does not require registration. Program Organizers: Adam Burrows, Frans Pretorius, Anatoly Spitkovsky, Branson Stephens, Jim Stone. Co-sponsored by The D. E. Shaw Group. Relativistic Astrophysics is experiencing an explosion in the quality of data and the level of sophistication of the modeling. Broadly defined, relativistic astrophysics studies phenomena for which the effects of Einsteins theory of relativity play a crucial role in determining the observables. Examples include relativistic motion of astrophysical jets, accretion onto black holes, formation and mergers of neutron stars and black holes, supernova explosions, and the acceleration of cosmic rays. For the next several years we expect a unique confluence of simultaneous observations from ground and space-based telescopes that span the whole electromagnetic spectrum: VLA (radio), Hubble/JWST (optical/infrared), Chandra, XMM, SWIFT, NuStar (X-rays), GLAST (gamma-rays), and HESS/MAGIC (multi-TeV gamma-rays). These facilities will be combined with the qualitatively new windows provided by particle astronomy via cosmic rays (Auger) and neutrinos (IceCube), and gravitational wave astronomy with LIGO.Theoretical understanding of the extreme environments of relativistic astrophysics is challenging due to the difficulties of modeling the nonlinear physical processes involved. Only recently, robust algorithms for relativistic magnetohydrodynamcs (RMHD) and for the solution of the Einstein equations have been developed and applied to astrophysics.The goal of this program is to further the development and use of advanced numerical techniques for problems where both strong gravity and MHD are important, where strong magnetic fields determine the evolution, and where the models of relativistic microphysics are uncertain. LOCATION:McDonnell, Room A-02 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1272297600f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100426T160000Z DTEND:20100426T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1272297600787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100426T160000Z DTEND:20100426T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12723030002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100426T173000Z DTEND:20100426T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127230660013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100426T183000Z DTEND:20100426T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1272400200c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100427T203000Z DTEND:20100427T203000Z SUMMARY:Princeton University Astronomy Colloquium, "Electromagnetic Signatures of Supermassive Black Hole Mergers" (Zoltan Haiman, Columbia University) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1272472200211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100428T163000Z DTEND:20100428T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Ryan Foley, Harvard-Smithsonian Center for Astrophysics) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12725730008ba3c03dbb12c7e0eb20cc24d960e952@sns.ias.edu DTSTART:20100429T203000Z DTEND:20100429T203000Z SUMMARY:Princeton University Department of Physics Colloquium, "TBA" (Peter Huybers, Harvard University) DESCRIPTION: LOCATION:Jadwin Hall, Room A-10 COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1272902400f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100503T160000Z DTEND:20100503T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12729078002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100503T173000Z DTEND:20100503T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127291140013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100503T183000Z DTEND:20100503T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1273005000c62e47ef52c55c96a766b05fbf47c54e@sns.ias.edu DTSTART:20100504T203000Z DTEND:20100504T203000Z SUMMARY:Princeton University Astronomy Colloquium, "The Transits of Exoplanets" (Josh Winn, Massachusetts Institute of Technology Physics) DESCRIPTION: LOCATION:Peyton Hall Auditorium COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1273077000211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100505T163000Z DTEND:20100505T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Michael McElwain, Princeton University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1273507200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100510T160000Z DTEND:20100510T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1273507200787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100510T160000Z DTEND:20100510T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12735126002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100510T173000Z DTEND:20100510T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127351620013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100510T183000Z DTEND:20100510T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1273681800211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100512T163000Z DTEND:20100512T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Frits Paerels, Columbia University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1274112000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100517T160000Z DTEND:20100517T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12741174002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100517T173000Z DTEND:20100517T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127412100013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100517T183000Z DTEND:20100517T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1274286600211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100519T163000Z DTEND:20100519T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Ryan Quadri, Leiden University) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1274716800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100524T160000Z DTEND:20100524T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1274716800787768801885f48ce090934598058157@sns.ias.edu DTSTART:20100524T160000Z DTEND:20100524T160000Z SUMMARY:Princeton University/Institute for Advanced Study Planet/Exoplanet Discussion Group, "TBA" (TBA) DESCRIPTION:The Monday Planet Lunch will be held bi-weekly. Graduate students are particularly encouraged to attend. The format will be informal and inclusive, spanning at a minimum exoplanets, the solar system, and astrobiology. Moreover, we plan on discussing multiple topics each time we meet, and not to tether a lunch to one organized presentation each sitting. The purpose is to foster wide-ranging and cross-fertilizing interaction and to keep the local community up to date on developments across the spectrum of associated activities. Ed Turner is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12747222002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100524T173000Z DTEND:20100524T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127472580013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100524T183000Z DTEND:20100524T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1274891400211369f541d267f1140e0a822958b70f@sns.ias.edu DTSTART:20100526T163000Z DTEND:20100526T163000Z SUMMARY: Princeton University Wunch Talk, "TBA" (Shelley Wright, University of California, Berkeley) DESCRIPTION: LOCATION:Peyton Hall, Room 33 (Old Tea Room) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1275926400f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100607T160000Z DTEND:20100607T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12759318002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100607T173000Z DTEND:20100607T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127593540013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100607T183000Z DTEND:20100607T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1276531200f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100614T160000Z DTEND:20100614T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12765366002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100614T173000Z DTEND:20100614T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127654020013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100614T183000Z DTEND:20100614T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1277136000f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100621T160000Z DTEND:20100621T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. Every other week the lunch will be held on the Princeton University campus. Attendees can bring their own lunch or are welcome to get lunch. LOCATION:Princeton University, Frist Multipurpose Room C (in the basement) COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12771414002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100621T173000Z DTEND:20100621T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA, Princeton University) DESCRIPTION:Renyue Cen is the organizer. LOCATION:Peyton Hall, Dome Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127714500013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100621T183000Z DTEND:20100621T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Princeton University, Peyton Hall, Grand Central Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:1277740800f8d786c945af79044c59b6c451992cae@sns.ias.edu DTSTART:20100628T160000Z DTEND:20100628T160000Z SUMMARY:Princeton University/Institute for Advanced Study Early Universe/Cosmology Lunch Discussion , "General Discussion" (General Discussion) DESCRIPTION:Every other week beginning today it will be at the Institute for Advanced Study's campus. Bring your own lunch or stop at the IAS Dining Hall. This room is in a building which is a short walk from the main dining area. Organizers are David Spergel, Princeton University, and Matias Zaldarriaga, Institute for Advanced Study. LOCATION:Institute for Advanced Study, West Building, West Seminar Room COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:12777462002af5b0e9623ca0d3b158cfcc1fd98b3d@sns.ias.edu DTSTART:20100628T173000Z DTEND:20100628T173000Z SUMMARY:Princeton University/Institute for Advanced Study Computational Cosmology and Galaxy Formation Seminar, "TBA" (TBA) DESCRIPTION:Renyue Cen is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT BEGIN:VEVENT UID:127774980013363a3419817900d973add8dad58abc@sns.ias.edu DTSTART:20100628T183000Z DTEND:20100628T183000Z SUMMARY:Princeton University/Institute for Advanced Study Galread [Galactic/Extragalactic Reading Group], "TBA" (TBA) DESCRIPTION:Jenny Greene is the organizer. The seminar location will alternate between the Institute for Advanced Study and Princeton University campuses. LOCATION:Institute for Advanced Study, Bloomberg Hall, Astrophysics Library COMMENT: URL: END:VEVENT END:VCALENDAR