
%0 Journal Article
%A Iovino, A 
%A Oosterloo, T 
%T HI observations of compact groups of galaxies
%J Publications of the Astronomical Society of Australia
%D 1997/04/01
%V 14
%N 1
%P 48-51
%K 
%R https://doi.org/10.1071/AS97048
%U https://www.publish.csiro.au/paper/AS97048 
%X We present preliminary results from HI observations of a new sample of compact groups done with the Parkes telescope, as well as from images made with the Australia Telescope Compact Array (ATCA). These observations confirm earlier claims that a significant fraction of compact groups are deficient in HI, and hence that a significant fraction of groups of galaxies that appear compact on the sky are indeed compact systems. The ATCA observations of a very HI-poor group suggest that this group is a true compact system in an advanced stage of evolution. However, the ATCA observations also show that HI-rich groups exist that are genuinely compact. 
