Evan Scannapieco , William Gray 
Arizona State University 

We use high-resolution three-dimensional adaptive mesh re?nement
simulations to investigate the interactions of high-redshift galaxy
out?ows with low-mass virialized clouds of primordial
composition. While atomic cooling allows star formation in objects
with virial temperatures above 10,000 K, "minihalos" with virial
temperatures below this threshold are generally unable to form stars
by themselves. However, the large population of high-redshift
starburst galaxies may have induced widespread star formation in
neighboring minihalos, via shocks that caused intense cooling through
nonequilibrium H2 formation. Tracking the non-equilibrium chemistry
and cooling of 14 species, we show that the results of such
interactions are compact stellar clusters remarkably similar to the
old population of globular clusters.