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Rotation of Halo Populations in the Milky Way and M31
A. J. Deason, V. Belokurov, N. W. Evans
We search for signs of rotation in the subsystems of the Milky Way and M31 that are defined by their satellite galaxies, their globular cluster populations, and their BHB stars. A…
The Tidal Tails of the Ultra-Faint Globular Cluster Palomar 1
M. Niederste-Ostholt, V. Belokurov, N. W. Evans +3
Using the Optimal Filter Technique applied to Sloan Digital Sky Survey photometry, we have found extended tails stretching about 1 degree (or several tens of half-light radii) from…
Big fish, small fish: Two New Ultra-Faint Satellites of the Milky Way
V. Belokurov, M. G. Walker, N. W. Evans +8
We report the discovery of two new Milky Way satellites in the neighboring constellations of Pisces and Pegasus identified in data from the Sloan Digital Sky Survey. Pisces II, an…
Re-Assembling the Sagittarius Dwarf Galaxy
M. Niederste-Ostholt, V. Belokurov, N. W. Evans +1
What is the mass of the progenitor of the Sagittarius (Sgr) dwarf galaxy? Here, we reassemble the stellar debris using SDSS and 2MASS data to find the total luminosity and likely m…