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Oxygen abundance in metal-poor stars

Journal Article · · Astrophys. J.; (United States)
DOI:https://doi.org/10.1086/157580· OSTI ID:5556455
; ;
Oxygen abundances in the atmospheres of a dozen unevolved stars of various metallicities (-2.3< or =(Fe/H)< or =+0.3) have been derived. In nearly all cases, the metal-poor stars exhibit an exhanced oxygen triplet at 7700 A. Substantial overabundances of oxygen are indicated for the program stars. This result is discussed in the light of current galactic nucleosynthesis theories.
Research Organization:
Department of Astronomy, University of Washington
OSTI ID:
5556455
Journal Information:
Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 234:3; ISSN ASJOA
Country of Publication:
United States
Language:
English

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Related Subjects

640102* -- Astrophysics &amp; Cosmology-- Stars &amp; Quasi-Stellar
Radio &amp; X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ATMOSPHERES
CHEMICAL COMPOSITION
CRYOGENIC FLUIDS
DWARF STARS
ELEMENTS
ENERGY SPECTRA
EQUILIBRIUM
ERUPTIVE VARIABLE STARS
FLUIDS
GALACTIC EVOLUTION
GALAXIES
LINE WIDTHS
LTE
MAIN SEQUENCE STARS
MILKY WAY
NONMETALS
NUCLEOSYNTHESIS
OXYGEN
SPECTRA
STARS
STELLAR ATMOSPHERES
SUPERNOVAE
VARIABLE STARS