Virial mass and kinematics of the Virgo cluster

Details Virial mass and kinematics of the Virgo cluster Virial mass and kinematics of the Virgo cluster

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992cha%26a..16..257z&link_type=abstract

Chinese Astronomy and Astrophysics (ISSN 0275-1062) Translation., vol. 16, no. 3, p. 257-265.

Astronomy and Astrophysics

Astrophysics

Mass To Light Ratios, Radial Velocity, Virgo Galactic Cluster, Virial Theorem, Irregular Galaxies, Line Of Sight, Maximum Likelihood Estimates

Scientific paper

The virial mass of the Virgo cluster, its mass-luminosity ratio, and some kinematical and dynamical characteristics were determined from line-of-sight velocity observational data of Binggeli et al. (1985) on 352 member galaxies in the central 6-deg core of the cluster determined. The 6-deg core area of the Virgo cluster was found to have a virial mass of 2.7 x 10 exp 14 solar masses, a total luminosity of 2.0 x 10 exp 12 solar luminosities, a mass-luminosity ratio of 136, and a luminosity mass of 4.1 x 10 exp 13 solar masses. The velocity dispersion profile of the Virgo cluster was found to be quite similar to that of the Coma, in particular with regard to the tendency of velocity dispersions to decrease for galaxies very close to the cluster.

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