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 threedifferent cold dark matter scenarios using N-body simulations of13 cluster-sized halos. With the resolution of our simulations, thedensity profile is reliable down to ~1% of the virial radius.In all runs, density cusps proportional to r^{-1.5} developed downto the reliable limit. This result was independent of the cosmologicalmodels we simulated. We could not reproduce the cusp shallower thanr^{-1.5}, which was obtained in some previous studies.