Early versus late type galaxies in compact groups

Details Early versus late type galaxies in compact groups Early versus late type galaxies in compact groups

1998-04-08

arxiv.org/abs/astro-ph/9804087v1

Astronomy and Astrophysics

Astrophysics

Astron. Nachr., IN PRESS

Scientific paper

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.

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