Galaxy Formation in Loose Groups

Details Galaxy Formation in Loose Groups Galaxy Formation in Loose Groups

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.3002p&link_type=abstract

American Astronomical Society Meeting 203, #30.02; Bulletin of the American Astronomical Society, Vol. 35, p.1252

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of our Parkes Multibeam HI survey of 4 loose groups of galaxies analogous to the Local Group. We present a census of the HI-rich objects in these groups down to MHI<107Msun and the detailed properties of these detections from follow-up Australia Telescope Compact Array observations. To date no HI clouds without stars have been found, only previously unknown dwarf galaxies. We will discuss how the properties of these 4 groups compare with the properties of the Local Group and with different models of galaxy formation. In addition, we will discuss the implications of our observations for the nature of high-velocity clouds around the Milky Way.

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