Evolution of Structure in Cold Dark Matter Universes

We present an analysis of the clustering evolution of dark matter in four cold dark matter (CDM) cosmologies. We use a suite of high-resolution, 17 million particle, N-body simulations that sample volumes large enough to give clustering statistics with unprecedented accuracy. We investigate a flat model with Ω0 = 0.3, an open model also with Ω0 = 0.3, and two models with Ω = 1, one with the standard CDM power spectrum and the other with the …