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A New Automated Sample of Compact Groups of Galaxies

Published online by Cambridge University Press:  25 May 2016

A. Iovino ,
E. Tassi ,
C. Mendes de Oliveira ,
P. Hickson  and
H. Macgillivray
A. Iovino
Affiliation:
Oss. Astron. di Brera, Milano, Italy
E. Tassi
Affiliation:
Oss. Astron. di Brera, Milano, Italy
C. Mendes de Oliveira
Affiliation:
USP, Sao Paolo, Brazil
P. Hickson
Affiliation:
UBC, Vancouver, Canada
H. Macgillivray
Affiliation:
ROE, Edinburgh, Great Britain

Extract

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Compact Groups (CGs) of galaxies represent an extreme class of objects. They typically contain 4-8 galaxies with high space density (as in the centers of rich clusters) but with low velocity dispersions, being an excellent laboratory for the study of galaxy interactions and their effects. Up to now no unbiassed sample of CGs was available in the literature, and therefore several of the classical problems and paradoxes involving CGs could not be properly addressed.

Type
Groups & Clusters
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 412
Copyright
Copyright © Kluwer 1999