The colliding-wind WC9+OB system WR 65 and dust formation by WR stars
Abstract
Observations of the WC9+OB system WR65 in the infrared show variations of its dust emission consistent with a period near 4.8 yr, suggesting formation in a colliding-wind binary (CWB) having an elliptical orbit. If we adopt the IR maximum as zero phase, the times of X-ray maximum count and minimum extinction to the hard component measured by Oskinova & Hamann fall at phases 0.4-0.5, when the separation of the WC9 and OB stars is greatest. We consider WR65 in the context of other WC8-9+OB stars showing dust emission.
- Publication:
-
Wolf-Rayet Stars
- Pub Date:
- 2015
- DOI:
- 10.48550/arXiv.1508.00724
- arXiv:
- arXiv:1508.00724
- Bibcode:
- 2015wrs..conf..275W
- Keywords:
-
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- International Workshop on Wolf-Rayet Stars, Potsdam, Germany, 1 - 5 June 2015