Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1772202 | Chinese Astronomy and Astrophysics | 2007 | 17 Pages |
Abstract
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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