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astro-ph2003
Observational constraints for Lithium depletion before the RGB
P. de Laverny, J. D. Jr do Nascimento, A. Lebre +1
Precise Li abundances are determined for 54 giant stars mostly evolving across the Hertzsprung gap. We combine these data with rotational velocity and with information related to t…
astro-ph2003
On the link between rotation, chromospheric activity and Li abundance in subgiant stars
J. D Jr. do Nascimento, B. L. Canto Martins, C. H. F. Melo +2
The connection rotation-CaII emission flux-lithium abundance is analyzed for a sample of bona fide subgiant stars, with evolutionary status determined from HIPPARCOS trigonometric…