Lithium and rotation in the Hyades late F and G stars

Rebolo, R.; Beckman, J. E.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 201, no. 2, Aug. 1988, p. 267-272.

Fecha de publicación:
8
1988
Número de autores
2
Número de autores del IAC
2
Número de citas
42
Número de citas referidas
39
Descripción
Selecting stars with previously measured or estimated rotational periods we have measured equivalent widths of the Li doublet (6708 A) in 8 stars of the Hyades late main sequence and, combining our data with literature values, derive a homogeneous set of Li abundances. The graph of Li against period is monotonic, taking, not surprisingly, a similar form to that of Li against effective temperature. A plot of log N (Li) v, Rossby number allows us to examine separately the dependence of the Li abundance on temperature and rotation and indirectly on magnetic fields. For stars later than F8 the data suggest a slight trend to increased depletion with longer period, at constant B-V.