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Mixing in two magnetic OB stars discovered by the MiMeS collaboration

Published online by Cambridge University Press:  12 July 2011

Thierry Morel
Thierry Morel*
Affiliation:
Institut d'Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium
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Abstract

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Recent observational and theoretical arguments suggest that magnetic OB stars may suffer more mixing than their non magnetic analogs. We present the results of an NLTE abundance study revealing a lack of CN-cycled material at the surface of two magnetic stars discovered by the MiMeS project (NGC2244 #201 and HD 57682). The existence of a strong magnetic field is therefore not a sufficient condition for deep mixing in main-sequence OB stars.

Keywords

stars: magnetic fieldsstars: early-typestars: abundancesstars: fundamental parametersstars: individual (NGC2244 #201, HD 57682)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 97 - 98
Copyright
Copyright © International Astronomical Union 2011

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