Lithium and Beryllium Depletions in Late-type Main-sequence Stars

Details Lithium and Beryllium Depletions in Late-type Main-sequence Stars Lithium and Beryllium Depletions in Late-type Main-sequence Stars

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cha%26a..31..244x&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 31, Issue 3, p. 244-260.

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

Using a non-local stellar convection theory for chemically inhomogeneous stars, we have calculated the lithium and beryllium depletions in mainsequence models of 0.7-1.15 M and have compared them with the observed depletions in open clusters of different ages. The results show that the general properties of lithium depletion in late type main-sequence stars with Teff < 5900K can be reproduced by convective overshooting mixing. We conclude that convective overshooting could be an important mechanism for the lithium depletion observed in late-type dwarfs.

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