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The neutral hydrogen properties of galaxies in gas-rich groups

Dzudzar, Robert; Kilborn, Virginia A; Meurer, Gerhardt; Sweet, Sarah; Drinkwater, Michael John; Bekki, Kenji; Audcent-Ross, Fiona; Koribalski, Baerbel S; Kim, Ji Hoon; Putman, Mary E; Dopita, Michael; Freeman, Kenneth


We present an analysis of the integrated neutral hydrogen (H I) properties for 27 galaxies within nine low-mass, gas-rich, late-type dominated groups which we denote 'Choirs'. We find that majority of the central Choir galaxies have average H I content: they have a normal gas-mass fraction with respect to isolated galaxies of the same stellar mass. In contrast, we find more satellite galaxies with a lower gas-mass fraction than isolated galaxies of the same stellar mass. A likely reason for the...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/sty3500
Access Rights: Open Access


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