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Observations of Lithium in red giant stars

Published online by Cambridge University Press:  23 April 2010

Verne V. Smith
Verne V. Smith*
Affiliation:
National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719USA email: vsmith@noao.edu
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Abstract

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Connections between observations of the lithium abundance in various types of red giants and stellar evolution are discussed here. The emphasis is on three main topics; 1) the depletion of Li as stars ascend the red giant branch for the first time, 2) the synthesis of 7Li in luminous and massive asymptotic giant branch stars via the mechanism of hot-bottom burning, and 3) the possible multiple sources of excess Li abundances found in a tiny fraction of various types of G and K giants.

Keywords

Stars: abundanceslate-type
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 301 - 309
Copyright
Copyright © International Astronomical Union 2010

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