Non-thermal radio emission from colliding-wind binaries: modelling Cyg OB2 No. 8A and No. 9
Abstract
Some OB stars show variable non-thermal radio emission. The non-thermal emission is due to synchrotron radiation that is emitted by electrons accelerated to high energies. The electron acceleration occurs at strong shocks created by the collision of radiatively-driven stellar winds in binary systems. Here we present results of our modelling of two colliding wind systems: Cyg OB2 No. 8A and Cyg OB2 No. 9.
- Publication:
-
Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits
- Pub Date:
- July 2011
- DOI:
- arXiv:
- arXiv:1012.3403
- Bibcode:
- 2011IAUS..272..638V
- Keywords:
-
- plasmas;
- radiation mechanisms: nonthermal;
- methods: numerical;
- binaries: spectroscopic;
- stars: early-type;
- stars: winds;
- outflows;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 2 pages, 2 figures, poster at IAUS272