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Magnetic fields, winds and X-rays of massive stars in the Orion nebula cluster

Published online by Cambridge University Press:  12 July 2011

Véronique Petit ,
Gregg A. Wade ,
Evelyne Alecian ,
Laurent Drissen ,
Thierry Montmerle  and
Asif ud-Doula
Véronique Petit
Affiliation:
Dept. of Geology & Astronomy, West Chester University, West Chester, PA 19383, USA email: [email protected]
Gregg A. Wade
Affiliation:
Dept. of Physics, Royal Military College of Canada, Kingston, K7K 7B4, Canada
Evelyne Alecian
Affiliation:
Laboratoire d'Astrophysique de Grenoble, F-38041 Grenoble Cdex 9, France
Laurent Drissen
Affiliation:
Dépt. de Physique, Université Laval, Québec, Canada
Thierry Montmerle
Affiliation:
Laboratoire d'Astrophysique de Grenoble, F-38041 Grenoble Cdex 9, France
Asif ud-Doula
Affiliation:
Penn State Worthington Scranton, Dunmore PA 18512, USA
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Abstract

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In some massive stars, magnetic fields are thought to confine the outflowing radiatively-driven wind. Although theoretical models and MHD simulations are able to illustrate the dynamics of such a magnetized wind, the impact of this wind-field interaction on the observable properties of a magnetic star - X-ray emission, photometric and spectral variability - is still unclear. The aim of this study is to examine the relationship between magnetism, stellar winds and X-ray emission of OB stars, by providing empirical observations and confronting theory. In conjunction with the COUP survey of the Orion Nebula Cluster, we carried out spectropolarimatric ESPaDOnS observations to determine the magnetic properties of massive OB stars of this cluster.

Keywords

stars: early-typestars: magnetic fieldsX-rays: starstechniques: polarimetric
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. 208 - 209
Copyright
Copyright © International Astronomical Union 2011

References

Donati, J.-F., Babel, J., Harries, T. J., Howarth, I. D. et al. 2002, MNRAS 333, 55Google Scholar
Donati, J.-F., Semel, M., Carter, B. D., Rees, D. E. et al. 1997, MNRAS, 291, 658Google Scholar
Lucy, L. B. & White, R. L. 1980, ApJ, 241, 300CrossRefGoogle Scholar
Owocki, S. P. & Cohen, D. H. 1999, ApJ, 520, 833Google Scholar
Petit, V., Wade, G. A., Drissen, L., Montmerle, T. et al. 2008, MNRAS 387, L23Google Scholar
Stelzer, B., Flaccomio, E., Montmerle, T., Micela, G. et al. 2005, ApJS, 160, 557Google Scholar
Townsend, R. H. D., Owocki, S. P., & Ud-Doula, A. 2007, MNRAS 382, 139CrossRefGoogle Scholar
ud-Doula, A., Owocki, S. P., & Townsend, R. H. D. 2008, MNRAS 385, 97Google Scholar