4 papers · 2 filters
Abundances of Baade's Window Giants from Keck/HIRES Spectra: I. Stellar Parameters and [Fe/H] Values
Jon. P. Fulbright, Andrew McWilliam, R. Michael Rich
We present the first results of a new abundance survey of the Milky Way bulge based on Keck/HIRES spectra of 27 K-giants in the Baade's Window (, ) field. The spectr…
The Frequency of Carbon Stars Among Extremely Metal-Poor Stars
Judith G. Cohen, Stephen Shectman, Ian Thompson +6
We demonstrate that there are systematic scale errors in the [Fe/H] values determined by the Hamburg/ESO Survey (and by inference by the HK Survey in the past) for certain extremel…
SN 2005bf: A Possible Transition Event Between Type Ib/c Supernovae and Gamma Ray Bursts
Gaston Folatelli, Carlos Contreras, M. M. Phillips +22
We present u'g'r'i'BV photometry and optical spectroscopy of the Type Ib/Ic SN 2005bf covering the first ~100 days following discovery. The u'g'BV light curves displayed a double-p…
Detailed Chemical Abundances of Extragalactic Globular Clusters
R. A. Bernstein, A. McWilliam
We outline a method to measure the detailed chemical composition of extragalactic (unresolved) globular clusters (GCs) from echelle spectra of their integrated light. Our goal is t…