Computer Science
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop...89a&link_type=abstract
NOAO Proposal ID #1999A-0089
Computer Science
Scientific paper
Dwarf spheroidals are the most common type of galaxy in the Universe. Detailed investigations of this galaxy class have essentially been restricted to the Local Group. By studying dwarf spheroidal galaxies outside the Local Group, one can learn whether environment plays an important role in their formation and evolution. Comparing the properties of dwarf spheroidal galaxies in a rich cluster of galaxies to those in the Local Group is an important aspect of this research. The CCD Mosaic Imager allows, for the first time, a deep survey for dwarf spheroidal galaxies in the Virgo cluster. We propose here to identify and photometer a well-defined sample of dwarf spheroidal galaxies in seven Mosaic fields in Virgo. These data will enable: studying the faint end of the Virgo galaxy luminosity function; identifying analogs to the Local Group dwarfs for detailed investigation using NGST or HST; study of the distribution in central surface brightness and the relation between central surface brightness and absolute magnitude; radial trends in the dwarf population; the frequency of nucleation in dwarf spheroidals.
Armandroff Taft
Caldwell Nelson
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