Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap.....37..161m&link_type=abstract
Astrophysics, Volume 37, Issue 2, pp.161-163
Astronomy and Astrophysics
Astrophysics
Scientific paper
Groups of galaxies are studied to identify galaxies of different morphological type in terms of their position relative to the centers of the groups and in terms of their peculiar radial velocities within the groups. The following results are obtained: (1) The mean distances of the galaxies relative to the centers of the groups gradually increase in the transition from the elliptical to the lenticular and spiral galaxies. However, galaxies classified in the subtypes of early or late elliptical are not distinguishable on the basis of this parameter. (b) The peculiar radial velocities of the elliptical, lenticular, and spiral galaxies in the groups are statistically indistinguishable. However, spiral galaxies falling in the early and late subtypes are distinguishable in terms of this parameter. The former subtype exhibit a lesser mean pecular radial velocity than the latter subtype.
Magtesyan A. P.
Movsesyan V. G.
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