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Title:
A K giant with an unusually high abundance of lithium - HD 112127
Authors:
Wallerstein, G.; Sneden, C.
Affiliation:
AA(Texas, University, Austin, TX), AB(Texas, University, Austin, TX)
Publication:
Astrophysical Journal, Part 1, vol. 255, Apr. 15, 1982, p. 577-584. (ApJ Homepage)
Publication Date:
04/1982
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Abundance, K Stars, Late Stars, Lithium, Red Giant Stars, Resonance Lines, Stellar Atmospheres, Atmospheric Models, Carbon Isotopes, Iron, Light Elements, Metallic Stars, Nitrogen Isotopes, Oxygen Isotopes, Stellar Evolution, Stellar Spectra
DOI:
10.1086/159859
Bibliographic Code:
1982ApJ...255..577W

Abstract

The strong-lined K giant star HD 112127 exhibits an extremely strong lithium resonance line in its spectrum. In most other respects the atmosphere of the star resembles the well-studied, strong-lined star Mu Leo. A model atmosphere analysis has been carried out for HD 112127 with particular emphasis on the light element abundances. Iron peak elements show essentially solar composition, while the CNO group is enhanced by about 0.2 dex. The carbon isotope ratio is near 20, while the lithium content of this star is approximately the maximum seen in unevolved stars. Schemes for the production of lithium in a relatively low luminosity giant are discussed.

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Database: Astronomy
Physics
arXiv e-prints