The hot side of the lithium dip - LiBeB abundances beyond the main sequence

Details The hot side of the lithium dip - LiBeB abundances beyond the main sequence The hot side of the lithium dip - LiBeB abundances beyond the main sequence

1999-09-13

arxiv.org/abs/astro-ph/9909209v1

Astronomy and Astrophysics

Astrophysics

10 pages, A&A, accepted

Scientific paper

We extend to the case of A and early-F type stars our study of the transport of matter and angular momentum by wind-driven meridional circulation and shear turbulence. We show that our fully consistent treatment of the same hydrodynamical processes which can account for C and N anomalies in B type stars (Talon et al. 1997) and for the shape of the hot side of the Li dip in the open clusters (Talon & Charbonnel 1998) also explains LiBeB observations in stars with Teff higher than 7000 K on the main sequence as well as in their evolved counterparts.

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