Journal article
The neutral hydrogen properties of galaxies in gas-rich groups
R Džudžar, V Kilborn, G Meurer, SM Sweet, M Drinkwater, K Bekki, F Audcent-Ross, B Koribalski, JH Kim, M Putman, E Ryan-Weber, M Zwaan, J Bland-Hawthorn, M Dopita, MT Doyle-Pegg, E Elson, K Freeman, D Hanish, T Heckman, R Kennicutt Show all
Monthly Notices of the Royal Astronomical Society | Published : 2019
Abstract
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 lower gas content in these galaxies is tidal stripping. Both the specific star formation rate and the star formation efficiency of the central group galaxies are similar to galaxies in isolation. The ..
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Grants
Awarded by National Science Foundation
Funding Acknowledgements
RD is supported by a Swinburne University Postgraduate Award (SUPRA) scholarship.r This work benefited from the trip to The Kavil Institute for Astronomy and Astrophysics (KIAA) conference, RD would like to thank the Astronomical Society of Australia for providing a student grant for this trip.r The Australia Telescope Compact Array is part of the Australia Telescope National Facility which is funded by the Australian Government for operation as a National Facility managed by CSIRO.r Parts of this research were conducted by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013.r This research has made use of the NASA/IPAC Ex-tragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.r This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation.r This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.