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

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

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...588..674f&link_type=abstract

The Astrophysical Journal, Volume 588, Issue 2, pp. 674-679.

Astronomy and Astrophysics

Astronomy

45

Cosmology: Theory, Cosmology: Dark Matter, Galaxies: Clusters: General, Methods: N-Body Simulations

Scientific paper

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.

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