Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-09-10
Astronomy and Astrophysics
Astrophysics
8 pages including 2 figures. To appear in SPIE proceedings on Astronomical Telescopes and Instrumentation. Uses spie.cls
Scientific paper
10.1117/12.457702
We present an abundance analysis of six main sequence turnoff, subgiant, and giant branch stars toward the Galactic bulge that were observed with Keck/HIRES during microlensing events. This is an early look at the first detailed chemical analysis of main sequence stars in the Galactic bulge. Lensing events allow the effective aperture of Keck to be increased beyond its current dimensions; although, some events still stretched its spectroscopic capabilities. Future large telescopes with high resolution and high throughput spectrometers will allow the study of abundances in distant stellar populations and in less evolved stars with greater ease.
Cavallo Robert Michael
Cook Kem H.
Vandehei Thor
~Minniti Dante
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