1998/09/25 by W. J. Percival, L. Miller, Percival, W. J. +1
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9809330
2 pages, 1 figure, to appear in proceedings of the Xth Recontres de Blois, "The Birth of Galaxies," LaTeX style file included
arxiv created 1998/09/25 · arxiv updated 2009/12/01
The rate at which galaxy halos form is thought to play a key role in explaining many observable cosmological phenomena such as the initial epoch at which luminous matter forms and the distribution of active galaxies. Here we show how Press-Schechter theory can be used to provide a simple, completely analytic model of the halo formation rate. This model shows good agreement with both Monte-Carlo and N-body simulation results.