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

Published online by Cambridge University Press:  12 July 2011

Alex W. Fullerton ,
Véronique Petit ,
Stefano Bagnulo  and
Gregg A. Wade
Alex W. Fullerton
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA email: fullerton@stsci.edu
Véronique Petit
Affiliation:
Dept. of Geology & Astronomy, West Chester University, West Chester, PA 19383, USA email: VPetit@wcupa.edu
Stefano Bagnulo
Affiliation:
Armagh Observatory, College Hill, Armagh, BT61 9DG, Northern Ireland email: sba@arm.ac.uk
Gregg A. Wade
Affiliation:
Dept. of Physics, Royal Military College of Canada, Kingston, ON, K7K 4B4, Canada email: Gregg.Wade@rmc.ca
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Abstract

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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.

Keywords

stars: early-typestars: emission-lineBestars: windsoutflowsstars: magnetic fieldsstars: individual (HD 155806)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 182 - 183
Copyright
Copyright © International Astronomical Union 2011

References

Donati, J.-F., Semel, M., Carter, B. D., Rees, D. E. et al. 1997, MNRAS, 291, 658CrossRefGoogle Scholar
Hubrig, S., Yudin, R. V., Pogodin, M., Schöller, M. et al. 2007, AN, 328, 1133Google Scholar
Hubrig, S., Schöller, M., Schnerr, R. S., González, J. F. et al. 2008, A&A, 490, 793Google Scholar
Nazé, Y., Rauw, G., & Ud-Doula, A. 2010, A&A, 510A, 59Google Scholar
ud-Doula, A. & Owocki, S. P. 2002, ApJ, 576, 413CrossRefGoogle Scholar
Walborn, N. R. 1973, AJ, 78, 1067CrossRefGoogle Scholar