Is the Wind of the Galactic Oe Star HD 155806 Magnetically Confined?
arXiv:1010.2224 · doi:10.1017/S1743921311010246
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.
2 pages, 1 figure; to appear in the proceedings of IAU Symposium 272