Extremely metal-deficient red giants. II. Chemical abundances in 21 halo giants
Journal Article
·
· Astrophys. J.; (United States)
Using a model-atmosphere analysis, we have determined chemical abundances in 21 red giants of the galactic halo. Nine new field stars from Bond's recent objective-prism survey, along with the well-known halo giant HD 122563, were analyzed on new high-dispersion spectrograms obtained at Palomar, Mount Wilson, and Cerro Tololo. Five giants in the globular cluster M13, three in M3, and three additional field stars were also analyzed using previously published equivalent-widths, providing a total sample of 21 halo giants analyzed in a homogeneous manner.
- Research Organization:
- Department of Physics and Astronomy, Louisiana State University
- OSTI ID:
- 6192794
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 244:3; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ATMOSPHERES
CHEMICAL COMPOSITION
DATA ANALYSIS
ENERGY SPECTRA
GALAXIES
GIANT STARS
LINE WIDTHS
MATHEMATICAL MODELS
MILKY WAY
NUCLEOSYNTHESIS
RED GIANT STARS
S PROCESS
SPECTRA
STAR CLUSTERS
STAR EVOLUTION
STAR MODELS
STARS
STELLAR ATMOSPHERES
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ATMOSPHERES
CHEMICAL COMPOSITION
DATA ANALYSIS
ENERGY SPECTRA
GALAXIES
GIANT STARS
LINE WIDTHS
MATHEMATICAL MODELS
MILKY WAY
NUCLEOSYNTHESIS
RED GIANT STARS
S PROCESS
SPECTRA
STAR CLUSTERS
STAR EVOLUTION
STAR MODELS
STARS
STELLAR ATMOSPHERES