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Lithium factories in the Galaxy: novae and AGB stars

Published online by Cambridge University Press:  23 April 2010

Francesca D'Antona  and
Paolo Ventura
Francesca D'Antona
Affiliation:
INAF – Osservatorio di Roma, via di Frascati 33, I-00040 Monteporzio, Italy email: [email protected], [email protected]
Paolo Ventura
Affiliation:
INAF – Osservatorio di Roma, via di Frascati 33, I-00040 Monteporzio, Italy email: [email protected], [email protected]
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Abstract

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We review the state of the art in modelling lithium production, through the Cameron–Fowler mechanism, in two stellar sites: during nova explosions and in the envelopes of massive asymptotic giant branch (AGB) stars. We also show preliminary results concerning the computation of lithium yields from super–AGBs, and suggest that super–AGBs of metallicity close to solar may be the most important galactic lithium producers. Finally, we discuss how lithium abundances may help to understand the modalities of formation of the “second generation” stars in globular clusters.

Keywords

Stars: AGB and post-AGBnovaeconvectionnuclear reactionsnucleosynthesisGlobular Clusters: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 395 - 404
Copyright
Copyright © International Astronomical Union 2010

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