Is the wind of the Oe star HD 155806 magnetically confined?
Abstract
Spectropolarimetric observations of HD 155806 - the hottest Galactic Oe star - were obtained with CFHT/ESPaDOnS to test the hypothesis that disk signatures in its spectrum are due to magnetic channeling and confinement of its stellar wind. We did not detect a dipole field of sufficient strength to confine the wind, and could not confirm previous reports of a magnetic detection. It appears that stellar magnetism is not responsible for producing the disk of HD 155806.
- Publication:
-
Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits
- Pub Date:
- July 2011
- DOI:
- arXiv:
- arXiv:1010.2224
- Bibcode:
- 2011IAUS..272..182F
- Keywords:
-
- stars: early-type;
- stars: emission-line;
- Be;
- stars: winds;
- outflows;
- stars: magnetic fields;
- stars: individual (HD 155806);
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 2 pages, 1 figure