Abundances determination of A, Am and F stars in the Pleiades and Coma Berenices clusters

Details Abundances determination of A, Am and F stars in the Pleiades and Coma Berenices clusters Abundances determination of A, Am and F stars in the Pleiades and Coma Berenices clusters

2008-03-06

arxiv.org/abs/0803.0947v1

Astronomy and Astrophysics

Astrophysics

2 pages, 2 figures, CP#Ap workshop

Scientific paper

Abundances of 18 chemical elements have been derived for 27 A/Am and 16 F stars members of the Pleiades and Coma Berenices open clusters. We have specifically computed, with the Montr\'eal code, a series of evolutionary models for two A stars members of these two clusters. None of the models reproduces entirely the overall shape of the abundances patterns. The inclusion of competing processes such as rotational mixing in the radiative zones of these stars seems necessary to improve the agreement between observed and predicted abundances patterns.

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