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Evidence for Substructure in Ursa Minor Dwarf Spheroidal Galaxy using a Bayesian Object Detection Method
Andrew B. Pace, Gregory D. Martinez, Manoj Kaplinghat +1
We present a method for identifying localized secondary populations in stellar velocity data using Bayesian statistical techniques. We apply this method to the dwarf spheroidal gal…
A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: VII. Kinematics of the Main Body of the Sagittarius dSph
Peter M. Frinchaboy, Steven R. Majewski, Ricardo R. Munoz +5
We have assembled a large-area spectroscopic survey of giant stars in the Sagittarius (Sgr) dwarf galaxy core. Using medium resolution (R ~15,000), multifiber spectroscopy we have…
The Primeval Populations of the Ultra-Faint Dwarf Galaxies
Thomas M. Brown, Jason Tumlinson, Marla Geha +9
We present new constraints on the star formation histories of the ultra-faint dwarf (UFD) galaxies, using deep photometry obtained with the Hubble Space Telescope (HST). A galaxy c…