Peculiar velocities of rich clusters in hot and cold dark matter models

Details Peculiar velocities of rich clusters in hot and cold dark matter models Peculiar velocities of rich clusters in hot and cold dark matter models

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...411..455r&link_type=abstract

Astrophysical Journal - Part 1 (ISSN 0004-637X), vol. 411, no. 2, p. 455-464.

Astronomy and Astrophysics

Astrophysics

2

Astrometry, Astronomical Models, Dark Matter, Galactic Clusters, Galactic Evolution, Red Shift, Cosmology, Digital Simulation, Many Body Problem, Velocity Distribution

Scientific paper

The present study of rich galaxy cluster peculiar velocities in numerical simulations of hot and cold dark matter universes identifies such clusters via a 'friends-of-friends' algorithm. It is found that the growth rate of cluster peculiar motions is larger than predicted by linear theory. It may be possible to derive the large-scale density field from cluster peculiar velocities for low bias parameters in both the cold and hot dark matter galaxy formation scenarios.

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