The First Results from the Parkes Multibeam High-Velocity Cloud Survey

Mary E. Putman , Brad K. Gibson, PASA, 16 (1), 70
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The First Results from the Parkes Multibeam High-Velocity Cloud Survey

Mary E. Putman 1
Brad K. Gibson 2

1 Mount Stromlo & Siding Spring Observatories, Australian National University, Weston Creek P. O., Weston, ACT, 2611 Australia
putman@mso.anu.edu.au

2 Center for Astrophysics and Space Astronomy, University of Colorado, Campus Box 389, Boulder, Colorado, 80309 USA
bgibson@casa.colorado.edu

Abstract:

With the onset of the HI Parkes All-Sky Survey, a new view of the high-velocity cloud (HVC) distribution in the southern sky is being revealed. The dense spatial sampling and unbiased coverage of HIPASS gives it multiple advantages over previous surveys of the southern sky. Detailed views of the clouds' structure and large mosaics of the HI sky allow us to link individual concentrations to larger structures (such as the Magellanic Clouds and the Galaxy), providing pictorial clues as to the origins of HVCs. It is clear that HVCs cannot be uniformly assigned a single origin scenario, and must be categorised appropriately.

Keywords: Galaxy: halo -- Magellanic Clouds -- ISM: structure





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