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arXiv · 1010.2224

Is the Wind of the Galactic Oe Star HD 155806 Magnetically Confined?

A. W. Fullerton·V. Petit·S. Bagnulo·G. A. Wade·the MiMeS Collaboration
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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.

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A. W. Fullerton, V. Petit, S. Bagnulo, G. A. Wade, the MiMeS Collaboration. 2010-10-11. Is the Wind of the Galactic Oe Star HD 155806 Magnetically Confined?. https://doi.org/10.1017/s1743921311010246

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