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.
@article{arxiv.1009.3433,
title = {Mixing in two magnetic OB stars discovered by the MiMeS collaboration},
author = {Thierry Morel},
journal= {arXiv preprint arXiv:1009.3433},
year = {2015}
}
Comments
2 pages, no figures. To appear in proceedings of IAUS272 'Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits'