Formation of galaxies and large-scale structure with cold dark matter

Details Formation of galaxies and large-scale structure with cold dark matter Formation of galaxies and large-scale structure with cold dark matter

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.311..517b&link_type=abstract

Nature (ISSN 0028-0836), vol. 311, Oct. 11, 1984, p. 517-525.

Physics

931

Dark Matter, Galactic Evolution, Galactic Structure, Matter (Physics), Universe, Astronomical Models, Baryons, Galactic Clusters, Globular Clusters

Scientific paper

The dark matter that appears to be gravitationally dominant on all scales larger than galactic cores may consist of axions, stable photinos, or other collisionless particles whose velocity dispersion in the early Universe is so small that fluctuations of galactic size or larger are not damped by free streaming. An attractive feature of this cold dark matter hypothesis is its considerable predictive power: the post-recombination fluctuation spectrum is calculable, and it in turn governs the formation of galaxies and clusters. Good agreement with the data is obtained for a Zeldovich spectrum of primordial fluctuations.

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