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Carbon Stars in the Satellites and Halo of M31
Katherine Hamren, Rachael L. Beaton, Puragra GuhaThakurta +7
We spectroscopically identify a sample of carbon stars in the satellites and halo of M31 using moderate-resolution optical spectroscopy from the Spectroscopic and Photometric Lands…
Exploding Satellites -- The Tidal Debris of the Ultra-Faint Dwarf Galaxy Hercules
Andreas H. W. Küpper, Kathryn V. Johnston, Steffen Mieske +2
The ultra-faint satellite galaxy Hercules has a strongly elongated and irregular morphology with detections of tidal features up to 1.3 deg (3 kpc) from its center. This suggests t…
Dynamical evidence for a strong tidal interaction between the Milky Way and its satellite, Leo V
Michelle L. M. Collins, Erik J. Tollerud, David J. Sand +3
We present a chemodynamical analysis of the Leo~V dwarf galaxy, based on Keck II DEIMOS spectra of 8 member stars. We find a systemic velocity for the system of $\langle v_r\rangle…
HST Imaging of the Local Volume Dwarf Galaxies Pisces A&B: Prototypes for Local Group Dwarfs
Erik J. Tollerud, Marla C. Geha, Jana Grcevich +3
We present observations of the Pisces A and B galaxies with the Advanced Camera for Surveys on the Hubble Space Telescope. Photometry from these images clearly resolve a Red Giant…
HI Observations of two New Dwarf Galaxies: Pisces A & B with the SKA Pathfinder KAT-7
C. Carignan, Y. Libert, D. M. Lucero +4
Context. Pisces A & Pisces B are the only two galaxies found via optical imaging and spectroscopy out of 22 HI clouds identified in the GALFAHI survey as dwarf galaxy candidates. A…