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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…
OGLE-2009-BLG-076S - The most metal-poor dwarf star in the Galactic bulge
T. Bensby, S. Feltzing, J. A. Johnson +6
Measurements based on a large number of red giant stars suggest a broad metallicity distribution function (MDF) for the Galactic bulge, centered on [Fe/H]=-0.1. However, recently,…
An Intermediate Luminosity Transient in NGC300: The Eruption of a Dust-Enshrouded Massive Star
E. Berger, A. M. Soderberg, R. A. Chevalier +10
[abridged] We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity optical t…