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

Véronique Petit, Gregg A. Wade, Evelyne Alecian, Laurent Drissen, Thierry Montmerle, Asif Ud-Doula

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

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.

Original languageEnglish (US)
Title of host publicationActive OB stars
Subtitle of host publicationstructure, evolution, mass loss, and critical limits
PublisherCambridge University Press
Pages208-209
Number of pages2
EditionS272
ISBN (Print)9780521198400
DOIs
StatePublished - Jul 2010

Publication series

NameProceedings of the International Astronomical Union
NumberS272
Volume6
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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    Petit, V., Wade, G. A., Alecian, E., Drissen, L., Montmerle, T., & Ud-Doula, A. (2010). Magnetic fields, winds and X-rays of massive stars in the Orion nebula cluster. In Active OB stars: structure, evolution, mass loss, and critical limits (S272 ed., pp. 208-209). (Proceedings of the International Astronomical Union; Vol. 6, No. S272). Cambridge University Press. https://doi.org/10.1017/S1743921311010374