Frémat, Y. ; Zorec, J. ; Martayan, C. ; Lanz, T.

published in Revista Mexicana de Astronomia y Astrofisica Conference Series, 33, pp. 53-53 (2008)

Abstract: Be stars are early-type Main Sequence objects which have shown at least once some emission in the hydrogen line series. Their most important characteristic is fast rotation, which on average reach ˜ 90% of the critical rate, i.e. O/O_{c} %˜ 0.90. Since a number of them have masses M > 15 M_?, they are ideal targets to study the effects of rotational mixing on the atmospheric CNO abundance and to perform comparisons with the predictions obtained from recent evolutionary models with rotation.

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