Journal article

Choirs, HI galaxy groups: Catalogue and detection of star-forming dwarf group members

SM Sweet, G Meurer, MJ Drinkwater, V Kilborn, H Dénes, K Bekki, D Hanish, H Ferguson, P Knezek, J Bland-Hawthorn, M Dopita, MT Doyle-Pegg, E Elson, K Freeman, T Heckman, R Kennicutt, JH Kim, B Koribalski, M Martin, M Putman Show all

Monthly Notices of the Royal Astronomical Society | Published : 2013

Abstract

Hα observations centred on galaxies selected from the HI Parkes All-Sky Survey (HIPASS)typically show one and sometimes two star-forming galaxies within the ~15 arcmin beam of the Parkes 64 m HI detections. In our Survey for Ionization in Neutral Gas Galaxies (SINGG)we found 15 cases of HIPASS sources containing four or more emission line galaxies (ELGs). We name these fields Choir groups. In the most extreme case, we found a field with at least nine ELGs. In this paper, we present a catalogue of Choir group members in the context of the wider SINGG sample. The dwarf galaxies in the Choir groups would not be individually detectable in HIPASS at the observed distances if they were isolated, b..

View full abstract

University of Melbourne Researchers

Grants

Awarded by Science and Technology Facilities Council


Funding Acknowledgements

[ "We acknowledge funding support from the University of Queensland-University of Western Australia Bilateral Research Collaboration Award and the Australian Research Council (grant DP110102608).", "JHK is supported by Korean Research Foundation (KRF) grant funded by the Korean government (MEST), No. 2010-0000712." ]