Large N-body simulations of a universe dominated by cold dark matter

Details Large N-body simulations of a universe dominated by cold dark matter Large N-body simulations of a universe dominated by cold dark matter

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242p..59p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Feb. 1, 1990, p. 59P-61P.

Astronomy and Astrophysics

Astronomy

104

Dark Matter, Many Body Problem, Universe, Gravitational Effects, Mass To Light Ratios, Power Spectra, Relic Radiation

Scientific paper

It is shown that pure gravitational evolution from an initial random density field with the standard cold dark matter (CDM) power spectrum does occasionally lead to filaments, walls, and voids remarkably like those seen in observed samples. A problem with the flat CDM model is the degree of streaming of galaxies relative to their velocity dispersion. A biased open CDM model seems to be more compatible with the observational data though it requires a higher amplitude of microwave background fluctuations.

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