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HI Observations of Compact Groups of Galaxies

Published online by Cambridge University Press:  05 March 2013

Tom Oosterloo  and
Angela Iovino
Tom Oosterloo
Affiliation:
ATNF, CSIRO, PO Box 76, Epping, NSW 2121, Australia; [email protected]
Angela Iovino
Affiliation:
Osservatorio Astronomico di Brera, via Brera, 28, 20121 Milano, Italy; [email protected]
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Abstract

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We present preliminary results from HI observations of a new sample of compact groups done with the Parkes telescope, as well as from images made with the Australia Telescope Compact Array (ATCA). These observations confirm earlier claims that a significant fraction of compact groups are deficient in HI, and hence that a significant fraction of groups of galaxies that appear compact on the sky are indeed compact systems. The ATCA observations of a very HI-poor group suggest that this group is a true compact system in an advanced stage of evolution. However, the ATCA observations also show that HI-rich groups exist that are genuinely compact.

Keywords

galaxies: interactionsgalaxies: ISMgalaxies: evolution
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 14 , Issue 1 , 1997 , pp. 48 - 51
Copyright
Copyright © Astronomical Society of Australia 1997

References

Broeils, A. H. 1992, PhD thesis, Rijkuniversiteit Groningen Google Scholar
Hernquist, L., Katz, N., & Weinberg, D. H. 1995, ApJ, 442, 57 CrossRefGoogle Scholar
Hickson, P., 1982, ApJ, 255, 382 CrossRefGoogle Scholar
Hickson, P., Auman, J. R., & Kindl, E. 1989, ApJS, 70, 687 CrossRefGoogle Scholar
Hickson, R., De Oliveira, C. M., Huchra, J. P., & Palumbo, G. G. 1992, ApJ, 399, 353 CrossRefGoogle Scholar
Mamon, G. A. 1986, ApJ, 307, 426 CrossRefGoogle Scholar
Prandoni, L., Iovino, A., & MacGillivray, H. T. 1994, AJ, 107, 1235 CrossRefGoogle Scholar
Ramella, M., Diaferio, A., Geller, M. J., & Huchra, J. P. 1994, AJ, 107, 1623 CrossRefGoogle Scholar
Roberts, M. S., & Haynes, M. P. 1994, ARA&A, 32, 115 Google Scholar
Rood, H. J., & Williams, B. A. 1987, ApJS, 63, 265 Google Scholar
Rose, J. A. 1977, ApJ, 211, 311 CrossRefGoogle Scholar
Rose, J. A. 1979, ApJ, 231, 10 CrossRefGoogle Scholar
Williams, B. A., McMahon, P. M., & van Gorkom, J. H. 1991, AJ, 101, 1957 CrossRefGoogle Scholar
Zepf, S. E. 1993, ApJ, 407, 448 CrossRefGoogle Scholar