Volume 569, September 2014
|Number of page(s)||6|
|Published online||25 September 2014|
Groupe d’Astrophysique des Hautes Énergies, Institut d’Astrophysique et de
Géophysique, Université de Liège,
17 allée du 6 Août, B5c,
2 Department of Physics, Royal Military College of Canada, PO Box 17000, Station Forces, Kingston, ON K7K 4B4, Canada
3 Department of Physics & Astronomy, University of Delaware, Bartol Research Institute, Newark, DE 19716, USA
4 Dept. of Physics & Space Sciences, Florida Institute of Technology, 32901 Melbourne, Austria
Accepted: 25 August 2014
Using an extensive X-ray dataset, we analyzed the X-ray emission of the massive O-star Tr16-22, which was recently found to be magnetic. Its bright X-ray emission is found to be modulated with a ~54 d period. This timescale should represent the rotational timescale of the star, as it does for other magnetic massive stars. In parallel, new spectropolarimetric data confirm the published magnetic detection.
Key words: stars: early-type / X-rays: stars / stars: individual: Tr16-22 / stars: magnetic field
Based on observations collected with the ESA science mission XMM-Newton, Chandra, and ESO-FORS2 instrument.
Tables 1–3 are available in electronic form at http://www.aanda.org
© ESO, 2014
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