Relative Velocities of Galaxies as a Contraint of Cosmological Parameters

Details Relative Velocities of Galaxies as a Contraint of Cosmological Parameters Relative Velocities of Galaxies as a Contraint of Cosmological Parameters

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.5407c&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #54.07; Bulletin of the American Astronomical Society, Vol. 33, p.1382

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Scientific paper

The "mean tendency of well-separated galaxies to approach each other" -- or the mean pairwise streaming velocity -- can be used to contrain cosmological parameters. It has been shown that this extension of the Cosmic Virial Theorem to larger separations allows one to estimate both the cosmological density parameter and the clustering amplitude of matter on large scales. We discuss this method and its application to real surveys.

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