Structure of Dark Matter Halos from Hierarchical Clustering. II. Dependence of Cosmological Models in Cluster‐sized Halos

Abstract

We investigate the structure of the dark matter halos formed in three different cold dark matter scenarios using N-body simulations of 13 cluster-sized halos. With the resolution of our simulations, the density profile is reliable down to ~1% of the virial radius. In all runs, density cusps proportional to r-1.5 developed down to the reliable limit. This result was independent of the cosmological models we simulated. We could not reproduce the cusp shallower than r-1.5, which was obtained in some previous studies.