Modulated X-ray emission of the magnetic O8.5V-star Tr16-22
Abstract
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.
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- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- September 2014
- DOI:
- 10.1051/0004-6361/201424416
- arXiv:
- arXiv:1408.6098
- Bibcode:
- 2014A&A...569A..70N
- Keywords:
-
- stars: early-type;
- X-rays: stars;
- stars: individual: Tr16-22;
- stars: magnetic field;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- accepted for publication in A&
