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Date and Time of the Query: 2019-07-16 T02:04:26 PDT
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For refcode 1991ApJ...372L..13W:
Retrieve 17 NED objects in this reference.
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1991ApJ...372L..13W ON THE POPULATION OF H I DWARF GALAXIES DAVID H. WEINBERG, ARPAD SZOMORU P. GUHATHAKURTA, AND J. H. VAN GORKOM Received 1990 December 12; accepted 1991 February 6 ABSTRACT We report results from a 21 cm survey of fields in the Perseus- Pisces supercluster and a foreground void, which was designed to find gas-rich dwarf galaxies or optically faint H I clouds with masses M_HI_>_~_ 10^8^ M_sun_. We detected 16 objects in the supercluster, nine of them previously uncataloged. We found no objects in the void fields, an indication that H I dwarf galaxies follow the spatial structure defined by bright galaxies although our results do not rule out a moderate "bias" between dwarfs and bright galaxies. The number of galaxies detected is smaller than expected from a simple extrapolation of the optical luminosity function. These data leave no room for a substantial population of H I dwarfs or gas-rich, low surface brightness giants that could have been missed by conventional, optical galaxy catalogs. Subject headings: galaxies: clustering - luminosity function - radio sources: 21 cm radiation
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