Mass-to-light ratios of nearby groups of galaxies

Details Mass-to-light ratios of nearby groups of galaxies Mass-to-light ratios of nearby groups of galaxies

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....86...91m&link_type=abstract

Astronomy and Astrophysics, vol. 86, no. 1-2, June 1980, p. 91-94.

Mathematics

Probability

4

Galactic Clusters, Mass To Light Ratios, Probability Density Functions, Astronomical Models, Density Distribution, Ratios, Space Density

Scientific paper

The application of a probability density function gives the possibility of determining groups of galaxies and membership probabilities of the galaxies in a reliable unbiased way. For the five nearest groups so defined, the mean mass-to-light ratio was derived using the concept of negative energy. These groups have a mass-to-light ratio of 16 solar masses/solar luminosity. The probability function also gives the possibility of deriving masses of groups in a direct and independent way.

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