Lithium Production in Asymptotic Giant Branch Stars

Details Lithium Production in Asymptotic Giant Branch Stars Lithium Production in Asymptotic Giant Branch Stars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916805k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #168.05; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

When stars undergo helium shell burning, they are subject to many different mixing processes which contribute to unusual elemental abundances found in these stars. 7Lithium burns at relatively low temperatures; however, it is found in these asymptotic giant branch (AGB) stars. This should not be possible, except through the production of lithium via hot bottom burning and the Cameron-Fowler mechanism. In this study, 122 AGB candidates were analyzed for possible lithium production. Lithium abundances (or upper limits) were determined for these stars using MOOG, as well as [Fe/H], radial velocity, and rotational velocity estimates. This project was conducted in ten weeks during the McDonald Observatory REU program funded under NSF AST-0243745

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