Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 384, Issue 1, Pages 305-315Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2007.12693.x
Keywords
surveys; globular clusters : general; galaxies : evolution; galaxies : irregular; radio lines : galaxies
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Here, we present Australia Telescope Compact Array (ATCA) H I maps of 16 H I sources in six Group Evolution Multiwavelength Study groups that were previously observed with the Parkes telescope. The higher spatial resolution of the ATCA allows us to clearly identify the optical counterparts for the first time - most being associated with low surface brightness late-type galaxies. New integrated H I maps and velocity fields for each source are presented. We find several interacting systems; one of which contains three galaxies within a common H I envelope. Extended H I structures in the sample are more consistent with tidal effects than ram pressure stripping. We identify two H I detections with previously uncatalogued optical galaxies, and add a total of six newly identified group members to the NGC 3923, 5044 and 7144 groups.
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