Starlab version 4.4.1
    program created on Apr 27 2005 at 22:55:38
    source file     /home/steve/starlab/src/node/dyn/init/split_particles.C

Split the specified particles in input snapshot into binaries having
specified orbital properties.

Naming convention: particle X is split into components X1 and X2.
Splitting may be applied recursively to produce multiple systems,
e.g.

       split_particles -l 1 -a 0.1 -e 0 -l 1b -a 0.01 -e 0.5

creates a triple system (11, (121, 122)).

Unlike mkscat, structure is never implicit, but must be created
from the top down.

Usage:  split_particles  [-s #] -l l1 -a a1 -e e1 -E E1 -q q1  -l l2 (etc.)

Options:
            -s    specify random seed [random from system clock]
            -i    use "a" and "b" instead of "1" and "2" [false]
            -l    specify label of next particle to split [no default]
            -a    specify semi-major axis of current binary [0.1]
            -e    specify eccentricity of current binary [random]
            -E    specify energy of current binary [0]
            -q    specify mass ratio (secondary[b]/primary[a]) of
                  the current binary [1]

The "-E" option takes precedence over the "-a" option.

Written by Steve McMillan.

Report bugs to starlab (at) sns.ias.edu.