252 citations · 751 across the 7 of their papers we have counts for
6 papers · 1 filter
The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
C. Allende Prieto, T. Sivarani, T. C. Beers +14
We report high-resolution spectroscopy of 125 field stars previously observed as part of the Sloan Digital Sky Survey and its program for Galactic studies, the Sloan Extension for…
Hf Transition Probabilities and Abundances
J. E. Lawler, E. A. Den Hartog, Z. E. Labby +3
Radiative lifetimes from laser-induced fluorescence measurements, accurate to about +/- 5 percent, are reported for 41 odd-parity levels of Hf II. The lifetimes are combined with b…
Anomalous RR Lyrae stars(?). III. CM Leonis
L. Di Fabrizio, G. Clementini, M. Marconi +8
Time series of B,V,I CCD photometry and radial velocity measurements from high resolution spectroscopy (R=30,000) covering the full pulsation cycle are presented for the field RR L…
New Analyses of Star-to-Star Abundance Variations Among Bright Giants in the Mildly Metal-Poor Globular Cluster M5
Inese I. Ivans, Robert P. Kraft, Christopher Sneden +3
We present a chemical composition analysis of 36 giant stars in the mildly metal-poor globular cluster M5 (NGC 5904). The analysis makes use of high resolution data acquired at the…
CU Comae: a new field double-mode RR Lyrae, the most metal poor discovered to date
G. Clementini, S. Di Tomaso, L. Di Fabrizio +12
We report the discovery of a new double-mode RR Lyrae variable (RRd) in the field of our Galaxy: CU Comae. CU Comae is the sixth such RRd identified to date and is the most metal-p…
The Mildly Metal-Poor Globular Cluster M4: Star-to-Star Abundance Variations in 20 Giants
I. I. Ivans, C. Sneden, R. P. Kraft
We present a chemical composition analysis of a sample of 20 giant branch stars in the "CN-bimodal" globular cluster M4 observed using high resolution echelle spectrographs at Lick…