Mixing in two magnetic OB stars discovered by the MiMeS collaboration
Abstract
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.
- Publication:
-
Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits
- Pub Date:
- July 2011
- DOI:
- 10.1017/S1743921311010088
- arXiv:
- arXiv:1009.3433
- Bibcode:
- 2011IAUS..272...97M
- Keywords:
-
- stars: magnetic fields;
- stars: early-type;
- stars: abundances;
- stars: fundamental parameters;
- stars: individual (NGC2244 #201;
- HD 57682);
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 2 pages, no figures. To appear in proceedings of IAUS272 'Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits'