Cold dark matter. 2: Spatial and velocity statistics

  title={Cold dark matter. 2: Spatial and velocity statistics},
  author={James M. Gelb and Edmund Bertschinger},
  journal={The Astrophysical Journal},
We examine high-resolution gravitational N-body simulations of the omega = 1 cold dark matter (CDM) model in order to determine whether there is any normalization of the initial density fluctuation spectrum that yields acceptable results for galaxy clustering and velocities. Dense dark matter halos in the evolved mass distribution are identified with luminous galaxies; the most massive halos are also considered as sites for galaxy groups, with a range of possibilities explored for the group… 
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