Journal
ASTRONOMY & ASTROPHYSICS
Volume 377, Issue 1, Pages 84-89Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20010482
Keywords
stars : abundances; stars : evolution; stars : rotation; open clusters and associations : individual :; Pleiades, Hyades, alpha Per, IC 2391, IC 2602; IC 4665
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We look for a correlation between Lithium abundance and rotation period in solar-type stars (G0... K0). The result is not unambiguous. Stars in young open clusters (IC 2391, IC 2602, IC 4665, alpha Per) do not show any correlation, in the Pleiades cluster a correlation is present: the faster the rotation the less the Lithium depletion. Moreover, there is statistical evidence, that at least in the Pleiades and in the alpha Persei cluster the abundance spread at fixed color in cool stars could be due to rotation. The use of the inverse Rossby number instead of the rotation rate does not improve on the Li-rotation correlation.
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