Program: GN-2007A-C-3

Recently collaborators in Cambridge have discovered several additional dwarf galaxy candidates in the SDSS survey, nearly doubling the known census of nine. These low-mass, low-luminosity (> 2x10^4 L_sun) galaxies are important in understanding galaxy formation, and are currently over-predicted by the accepted Cold Dark Matter (CDM) paradigm. Only in our immediate neighborhood is it possible to weigh such galaxies using the motions of their individual stars. Accordingly, we propose GMOS and/or DEIMOS followup spectroscopy to determine the velocity dispersions of these galaxies.