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Lithium in metal-poor red giants

Published online by Cambridge University Press:  23 April 2010

Laimons Začs  and
Arturs Barzdis
Laimons Začs
Affiliation:
Faculty of Physics and Mathematics, University of Latvia, Raiņa bulvāris 19, LV-1586 Rīga, Latvia email: zacs@latnet.lv
Arturs Barzdis
Affiliation:
Faculty of Physics and Mathematics, University of Latvia, Raiņa bulvāris 19, LV-1586 Rīga, Latvia email: zacs@latnet.lv
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Abstract

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The lithium abundance was calculated for five metal-poor red giant stars from Li i doublet at 6707 Å by fitting the observed high-resolution spectra with synthetic spectra. The lithium abundance was found to be low in all stars, logϵ(Li) ≤ 1.8, confirming lithium depletion on the red giant and asymptotic giant branch.

Keywords

Stars: abundancesPopulation IIlate-typebinaries: spectroscopicstars: individual (HD 30443, HD 187216, HD 209621, HD 218732, HD 232078)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 361 - 362
Copyright
Copyright © International Astronomical Union 2010

References

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