| Title | On the Population of H i Dwarf Galaxies |
| Authors | Weinberg, David H.; Szomoru, Arpad; Guhathakurta, P.; van Gorkom, J. H. |
| Bibcode | 1991ApJ...372L..13W Search ADS ↗ |
| 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. |
| Objects | 17 Objects Search NED ↙ |
