I am a postdoctoral member of the Department of Astrophysics in the School of Natural Sciences at the Institute for Advanced Study in Princeton, New Jersey.

My research interests lie in cosmology. Using both analytical techniques and large-scale numerical simulations I investigate the physics governing our universe's origin. Some of my recent work has been on:

• The dark matter (sub-)structure of the Milky-Way and its annihilation signal.

  Nature, 454, 735, ApJ, in press

• Radiative and hydrodynamic feedback from the first generation of accreting black holes. MNRAS, 188, 791
• The possibility of observing X-ray heated gas from before reionization through its redshifted 21cm emission. ApJ, 637, L1