Lithium and rotation in the Hyades late F and G stars

Details Lithium and rotation in the Hyades late F and G stars Lithium and rotation in the Hyades late F and G stars

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...201..267r&link_type=abstract

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

Astronomy and Astrophysics

Astrophysics

34

F Stars, G Stars, Late Stars, Lithium, Spectral Line Width, Stellar Rotation, Abundance, Dwarf Stars, Star Clusters, Stellar Temperature

Scientific paper

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.

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