524 citations · 3.2k across the 35 of their papers we have counts for
10 papers · 2 filters
The ACS Survey of Galactic Globular Clusters. I. Overview and Clusters Without Previous HST Photometry
Ata Sarajedini, L. Bedin, B. Chaboyer +10
We present the first results of a large ACS Survey of Galactic globular clusters. This Hubble Space Telescope (HST) Treasury project is designed to obtain photometry with S/N > ~10…
A Deep Proper-Motion Survey in Kapteyn Selected Areas: I. Survey Description and First Results for Stars in the Tidal Tail of Sagittarius and in the Monoceros Ring
Dana I. Casetti-Dinescu, Steven R. Majewski, Terrence M. Girard +4
We describe a high-precision, deep (to V ~ 19-21) absolute proper-motion survey that samples ~50 lines of sight in the Kapteyn Selected Areas along declination zones -15, 0 and 15…
Exploring Halo Substructure with Giant Stars X. Extended Dark Matter or Tidal Disruption?: The Case for the Leo I Dwarf Spheroidal Galaxy
Sangmo Tony Sohn, S. R. Majewski, R. R. Muñoz +7
We present a wide-field (4.5 deg^2) photometric and spectroscopic survey of the Leo I dwarf spheroidal (dSph) galaxy to explore its extended morphology and dynamics. As in previous…
Exploring Halo Substructure with Giant Stars: The Dynamics and Metallicity of the Dwarf Spheroidal in Bootes
Ricardo R. Munoz, Jeffrey L. Carlin, Peter M. Frinchaboy +3
We report the results of a spectroscopic study of the Bootes (Boo) dwarf spheroidal (dSph) galaxy carried out with the WIYN telescope and the Hydra multifiber spectrograph. Radial…
Unveiling the Boxy Bulge and Bar of the Andromeda Spiral Galaxy
Rachael L. Beaton, Steven R. Majewski, Puragra Guhathakurta +6
A new, 2.8 deg^2 J,H,K_s infrared survey from the 2MASS 6x program across the extent of the optical disk of the Andromeda (M31) galaxy provides a clear view of the M31 center almos…
The Metal-Poor Halo of the Andromeda Spiral Galaxy (M31)
J. S. Kalirai, K. M. Gilbert, P. Guhathakurta +6
We present spectroscopic observations of red giant branch (RGB) stars over a large expanse in the halo of the Andromeda spiral galaxy (M31), acquired with the DEIMOS instrument on…