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HubPUG: Proper Motions for Local Group Dwarfs observed with HST utilizing Gaia as a Reference Frame
Jack T. Warfield, Nitya Kallivayalil, Paul Zivick +6
We present the method behind HubPUG, a software tool built for recovering systemic proper motions (PMs) of Hubble Space Telescope (HST) fields with two epochs of observations by ut…
The Hubble Space Telescope Survey of M31 Satellite Galaxies I. RR Lyrae-based Distances and Refined 3D Geometric Structure
Alessandro Savino, Daniel R. Weisz, Evan D. Skillman +33
We measure homogeneous distances to M31 and 38 associated stellar systems (16.8 6.0), using time-series observations of RR Lyrae stars taken as part of the Hubbl…
Structural parameters and possible association of the Ultra-Faint Dwarfs Pegasus III and Pisces II from deep Hubble Space Telescope photometry
Hannah Richstein, Ekta Patel, Nitya Kallivayalil +17
We present deep Hubble Space Telescope (HST) photometry of the ultra-faint dwarf (UFD) galaxies Pegasus III (Peg III) and Pisces II (Psc II), two of the most distant satellites in…