265 citations · 1.4k across the 20 of their papers we have counts for
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A Puzzle Involving Galactic Bulge Microlensing Events
Judith G. Cohen, Andrew Gould, Ian B. Thompson +7
We study a sample of 16 microlensed Galactic bulge main sequence turnoff region stars for which high dispersion spectra have been obtained with detailed abundance analyses. We demo…
HD 69686: A Mysterious High Velocity B Star
Wenjin Huang, Douglas R. Gies, M. Virginia McSwain
We report on the discovery of a high velocity B star, HD 69686. We estimate its space velocity, distance, surface temperature, gravity, and age. With these data, we are able to rec…
Variability of Be Stars in Southern Open Clusters
M. Virginia McSwain, Wenjin Huang, Douglas R. Gies
We recently discovered a large number of highly active Be stars in the open cluster NGC 3766, making it an excellent location to study the formation mechanism of Be star disks. To…
The Chemical Evolution of the Draco Dwarf Spheroidal Galaxy
Judith G. Cohen, Wenjin Huang
We present an abundance analysis based on high resolution spectra of 8 stars selected to span the full range in metallicity in the Draco dwarf spheroidal galaxy. We find [Fe/H] for…
Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in MOA-2008-BLG310 and MOA-2008-BLG311
Judith G. Cohen, Ian B. Thompson, Takahiro Sumi +5
We present abundance analyses based on high dispersion and high signal-to-noise ratio Magellan spectra of two highly microlensed Galactic bulge stars in the region of the main sequ…
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. Detailed abundance analysis of OGLE-2008-BLG-209S
T. Bensby, J. A. Johnson, J. Cohen +7
AIMS. Our aims are twofold. First we aim to evaluate the robustness and accuracy of stellar parameters and detailed elemental abundances that can be derived from high-resolution sp…