FORMATION OF GALAXIES IN THE EARLY UNIVERSE

We study the formation of galaxies in the early universe for masses 10 (9)-10(12) Mg.. We study in particular the role of nonspherical collap se and rotation on the epoch of galaxy formation. We begin the calcula tions at the recombination era and take into account the physical proc esses: expansion of the universe, photon-drag, recombination, photoion ization, collisional-ionization, photon-cooling, and hydrogen molecula r production, destruction and cooling. For the standard isothermal den sity perturbation spectrum studied by de Araujo and Opher and Gott and Rees, we obtain, for example for M = 10(11) M., the collapse redshift s z(c) = 0.76-1.72 for eccentricities between zero and 0.866. We argue that the natural way to explain why galaxies have a maximum mass is t hat the maximum mass is a natural result of the existence of the primo rdial perturbation spectrum. The maximum mass that we find is on the o rder of observed galactic masses M similar to 10(11) M..