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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…
Na-O Anticorrelation and HB. VIII. Proton-capture elements and metallicities in 17 globular clusters from UVES spectra
Eugenio Carretta, Angela Bragaglia, Raffaele Gratton +1
We present homogeneous abundances for Fe and some of the elements involved in the proton-capture reactions (O, Na, Mg, Al, and Si) for 202 red giants in 17 Galactic globular cluste…
Elemental abundances in the Galactic bulge from microlensed dwarf stars
T. Bensby, S. Feltzing, J. A. Johnson +11
We present elemental abundances of 13 microlensed dwarf and subgiant stars in the Galactic bulge, which constitute the largest sample to date. We show that these stars span the ful…
Automated Determination of [Fe/H] and [C/Fe] from Low-Resolution Spectroscopy
B. Marsteller, T. C. Beers, T. Sivarani +5
We develop an automated spectral synthesis technique for the estimation of metallicities ([Fe/H]) and carbon abundances ([C/Fe]) for metal-poor stars, including carbon-enhanced met…