The orbits of H I-deficient spiral galaxies in the Virgo cluster

Details The orbits of H I-deficient spiral galaxies in the Virgo cluster The orbits of H I-deficient spiral galaxies in the Virgo cluster

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...167...25g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 167, no. 1, Oct. 1986, p. 25-33. Research supported by the Fondation de France

Astronomy and Astrophysics

Astrophysics

15

Galactic Evolution, Orbits, Spiral Galaxies, Virgo Galactic Cluster, Hydrogen, Morphology

Scientific paper

A sample of 107 galaxies in the Virgo area has been used to investigate the orbits of H I-deficient spiral galaxies and the velocity-distance relation in Virgo. The analysis of the orbits of H I-deficient spirals indicates that they are very likely to be on radial orbits. It is suggested that the process of H I-removal occurs in the Virgo core. A new version of the Tully-Fisher relation in the B-band with probable accuracy of 0.35 mag is used to resolve the cluster in depth. Mass-age infall models with Λ = 0 have been compared with the data. With a short distance scale, consistent results are obtained for the Virgo cluster with a velocity >V0< = 967 km s-1, a distance of 14 ≡ 15 Mpc, a point-mass of Mv = 5×1014M_sun; and a time T = 12 Gy.

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