The Low Mass Stellar Luminosity Function in Dwarf Spheroidal Galaxies

Details The Low Mass Stellar Luminosity Function in Dwarf Spheroidal Galaxies The Low Mass Stellar Luminosity Function in Dwarf Spheroidal Galaxies

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7419w&link_type=abstract

HST Proposal ID #7419

Physics

Hst Proposal Id #7419 Stellar Populations

Scientific paper

The dSph satellite galaxies of the Milky Way provide the nearest, and best studied, examples of dark-matter dominated systems. They have stellar velocity dispersions well in excess of those consistent with their mass being predominantly in a stellar mass function at all like that of the solar neighborhood, or of the Galactic globular clusters. They are also sufficiently close that the new HST instruments can see directly very low mass stars in these galaxies. We propose deep imaging studies of the Ursa Minor dSph galaxy, to provide a direct test of the possibility that the stellar mass function is a function of environment, and that low mass luminous stars are relevant to an understanding of dark matter.

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