The kinematics of the Virgo cluster revisited

Details The kinematics of the Virgo cluster revisited The kinematics of the Virgo cluster revisited

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...98..275b&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 98, no. 2, p. 275-296.

Astronomy and Astrophysics

Astronomy

205

Body Kinematics, Dwarf Galaxies, Elliptical Galaxies, Virgo Galactic Cluster, Astronomical Catalogs, Interacting Galaxies, Local Group (Astronomy), Velocity Distribution

Scientific paper

The paper updates the velocity data of Virgo cluster galaxies and reconsiders the kinematic structure of the Virgo cluster. New velocities are given for 144 galaxies listed in the Virgo Cluster Catalog (VCC). Improved velocities are given for another 131 VCC galaxies. The Virgo cluster is disentangled from its surrounding clouds of galaxies, and the likely members of each of these clouds are listed. The velocity distribution of dwarf elliptical cluster members is found to be highly asymmetric. This phenomenon is interpreted as evidence for the imminent merging of two subclusters in the core region, which points to the dynamical youth of the Virgo cluster. The mean heliocentric velocity of the Virgo cluster is estimated at 1050 +/- 35 km/s.

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