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The HI Content of Compact Groups of Galaxies


Stevens, JB and Webster, RL and Barnes, DG and Pisano, DJ and Drinkwater, MJ, The HI Content of Compact Groups of Galaxies, Publications of the Astronomical Society of Australia, 21, (3) pp. 318-333. ISSN 1323-3580 (2004) [Refereed Article]

DOI: doi:10.1071/AS03048


The HI content of Hickson Compact Groups in the southern hemisphere is measured using data from the HI Parkes All-Sky Survey (HIPASS), and dedicated observations using the narrow band filter on the Multibeam instrument on the Parkes telescope. The expected HI mass of these groups was estimated using the luminosity, diameter, and morphological types of the member galaxies, calibrated from published data. Taking careful account of non-detection limits, the results show that the compact group population that has been detected by these observations has an HI content similar to that of galaxies in the reference field sample. The upper limits for the undetected groups lie within the normal range; improvement of these limits will require a large increase in sensitivity. © Astronomical Society of Australia 2004.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Stevens, JB (Dr Jamie Stevens)
ID Code:46657
Year Published:2004
Web of Science® Times Cited:15
Deposited By:Physics
Deposited On:2007-08-28
Last Modified:2007-08-28

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