N-body simulations of cold dark matter

Details N-body simulations of cold dark matter N-body simulations of cold dark matter

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..272.1608g&link_type=abstract

Proceedings of the XXVI International Conference on High Energy Physics. Vol. II. AIP Conference Proceedings, Volume 272, pp. 1

Physics

High Energy Physics

Radio, Microwave

Scientific paper

We use large N-body simulations to follow the nonlinear gravitational clustering of millions of mass points representing collisionless clouds of cold dark matter (CDM) in a critically-closed universe (Ω=1). Simulated catalogs of galaxies are statistically compared with observations of spatial and velocity correlations. We show that the CDM model, normalized on large scales using recent COBE data, predicts excessive small-scale velocities; and we discuss possible modifications to the model that may help reduce this problem.

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