Bibcode
Iglesias-Páramo, J.; Vílchez, J. M.
Bibliographical reference
Small Galaxy Groups: IAU Colloquium 174, ASP Conference Series, Volume 209. Held in Turku, Finland, 13-18th June 1999. Edited by Mauri J. Valtonen and Chris Flynn. Published by Astronomical Society of the Pacific, San Francisco, CA, 2000. P. 349.
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2000
Citations
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Refereed citations
0
Description
H &alpha luminosities are presented in order to study the Star
Formation Rates (SFRs) of a sample of galaxies in compact groups from
Hickson's (1982) catalogue. Although the comparison of the SFRs of the
disk galaxies in our sample with those of a sample of field galaxies
yielded no difference between the average SFRs for disk galaxies in
compact groups and in the field, environmental effects seem to influence
the H &alpha luminosities of late and early-type galaxies in compact
groups. No relationship was found between the total normalized H
&alpha luminosities of the groups and some dynamical parameters,
indicating that the dynamical state of the group does not influence the
SFR of the group. The lack of dominant interaction induced starbursts in
our sample is compatible with a scenario for compact groups of galaxies
in which the dark matter of the group is arranged in a common halo,
thereby preventing a fast collapse of the galaxies.