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arXiv · 0812.2464

Is the wind of the Oe star HD 155806 magnetically confined?

V. Petit·A. W. Fullerton·S. Bagnulo·G. A. Wade
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Abstract

Oe stars are a subset of the O-type stars that exhibit emission lines from a circumstellar disk. The recent detection of magnetic fields in some O-type stars suggests a possible explanation for the stability of disk-like structures around Oe stars. According to this hypothesis, the wind of the star is channeled by a dipolar magnetic field producing a disc in the magnetic equatorial plane. As a test of this model, we have obtained spectropolarimetric observations of the hottest Galactic Oe star HD 155806. Here we discuss the results and implications of those observations.

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V. Petit, A. W. Fullerton, S. Bagnulo, G. A. Wade. 2008-12-12. Is the wind of the Oe star HD 155806 magnetically confined?. https://doi.org/10.1017/s1743921309030786

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