Dynamical biases in gravitational clustering

Details Dynamical biases in gravitational clustering Dynamical biases in gravitational clustering

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367..385c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 367, Feb. 1, 1991, p. 385-392. Research supported by NSERC.

Astronomy and Astrophysics

Astrophysics

44

Cosmology, Galactic Clusters, Gravitational Effects, Dark Matter, Halos, Red Shift, Spatial Distribution

Scientific paper

This paper presents a quantitative study of the statistical biases of galaxies as tracer particles in a model universe. The origin and the evolution of dynamical biases observed in the centers of dark matter halos are investigated using dissipationless n-body models. The simulation data obtained are used to estimate the prevailing values of the velocity bias, correlation bias, and the amplitude of the assumed CDM Omega = 1 perturbation spectrum.

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