ON THE FORMATION OF GLOBULAR-CLUSTERS .2. EARLY DYNAMICAL EVOLUTION

A consistent model of globular cluster formation is presented. We investigate the dynamical evolution of a supershell that is created and chemically enriched by supernovae at the center of a primordial cloud, embedded in a hot protogalactic environment. It is shown that such an expanding supershell can be decelerated sufficiently by the pressure of the hot medium to ensure that the second-generation stars (i.e., those forming in the supershell) can form a bound cluster. When we assume that only the most tightly bound systems survive, we can make detailed predictions concerning the masses, radii, and binding energies of resulting clusters which agree well with those of observed globular clusters.