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Early versus late type galaxies in compact groups
Author(s) -
Shaker A. A.,
Longo G.,
Merluzzi P.
Publication year - 1998
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2123190305
Subject(s) - physics , astrophysics , velocity dispersion , peculiar galaxy , elliptical galaxy , galaxy group , galaxy , disc , luminous infrared galaxy , effective radius , lenticular galaxy , astronomy
We find a strong correlation between the effective radius of the largest early‐type galaxies in compact groups of galaxies and the velocity dispersion of the groups. The lack of a similar correlation for late type galaxies is supportive of the so called second generation merging scenario which predicts that ellipticals should dominate the internal dynamics of the groups, while late‐type galaxies are mainly recent interlopers which are still in an early stage of interaction with the group potential.