4 papers
Rotation and lithium in single giant stars
J. R. De Medeiros, J. D. do Nascimento, S. Sankarankutty +2
In the present work, we study the link between rotation and lithium abundance in giant stars of luminosity class III, on the basis of a large sample of single stars of spectral typ…
Lithium and rotation on the subgiant branch II. Theoretical analysis of observations
J. D. do Nascimento, C. Charbonnel, A. Lebre +2
Lithium abundances and rotation, determined for 120 subgiant stars in Lebre et al. (1999) are analyzed. To this purpose, the evolutionary status of the sample as well as the indivi…
Lithium abundances in main-sequence F stars and sub-giants
Jose Dias do Nascimento, Sylvie Theado, Sylvie Vauclair
The application to main-sequence stars of the rotation-induced mixing theory in the presence of mu-gradients leads to partial mixing in the lithium destruction region, not visible…
How many low-mass stars do destroy 3He?
C. Charbonnel, J. D. do Nascimento
We recall the current status of the long-standing 3He problem, and its possible connection with chemical anomalies on the red giant branch. In this context, we collect in the liter…