The HI content of compact groups of galaxies

J. B. Stevens; R. L. Webster; D. G. Barnes; D. J. Pisano; M. J. Drinkwater

doi:10.1071/AS03048

The HI content of compact groups of galaxies

J. B. Stevens, R. L. Webster, D. G. Barnes, D. J. Pisano, M. J. Drinkwater

Research output: Contribution to journal › Article › Research › peer-review

15 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	318-333
Number of pages	16
Journal	Publications of the Astronomical Society of Australia
Volume	21
Issue number	3
DOIs	https://doi.org/10.1071/AS03048
Publication status	Published - 1 Dec 2004
Externally published	Yes

Keywords

Galaxies: evolution
Galaxies: interactions
Methods: observational

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10.1071/AS03048

Cite this

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abstract = "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.",

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T1 - The HI content of compact groups of galaxies

AU - Stevens, J. B.

AU - Webster, R. L.

AU - Barnes, D. G.

AU - Pisano, D. J.

AU - Drinkwater, M. J.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - 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.

AB - 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.

KW - Galaxies: evolution

KW - Galaxies: interactions

KW - Methods: observational

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SP - 318

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JO - Publications of the Astronomical Society of Australia

JF - Publications of the Astronomical Society of Australia

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The HI content of compact groups of galaxies

Abstract

Keywords

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