IAU01618
Presentation type requested: EITHER
THE HIPASS BRIGHT GALAXY CATALOG
Baerbel S Koribalski
Australia Telescope National Facility, CSIRO
We present the 1000 HI-brightest galaxies in the southern sky as obtained from the HI Parkes All-Sky Survey (HIPASS). This "HIPASS Bright Galaxy Catalog" (BGC) is the largest sample of galaxies from a blind HI survey to date, covering the most extensive area surveyed in HI. The BGC contains the HI properties as well as optical counterpart(s), and, based on a distance model, list the HI masses which range from 10^6 to 4 x 10^10 Msun. For 91 objects, nearly 10% of the BGC, no optical or infrared counterparts have previously been cataloged. A large fraction of these (37) lie at Galactic latitudes |b| < 5 degrees in the Zone-of-Avoidance. Since radio wavelengths suffer no obscuration by the Galactic Plane, HIPASS provides a clear view of the local large-scale structure. The dominant features in the sky distribution of the BGC are the Supergalactic Plane and the Local Void. In addition, one can clearly see the Centaurus Wall which connects via the Hydra and Antlia clusters to the Puppis filament. Some previously hardly noticed galaxy groups stand out quite distinctively in the HI sky distribution. Several new structures can be mapped for the first time, not only behind the Milky Way.
HIPASS/ZOA Teams
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