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arxiv: 1012.3403 · v1 · pith:ZXUZRDD2new · submitted 2010-12-15 · 🌌 astro-ph.HE

Non-thermal radio emission from colliding-wind binaries: modelling Cyg OB2 No. 8A and No. 9

Delia Volpi (1) , Ronny Blomme (1) , Michael De Becker (2 , 3) , Gregor Rauw (2) ((1) Royal Observatory of Belgium , (2) Institut d'Astrophysique , Universit\'e de Li\`ege , (3) Observatoire de Haute-Provence) This is my paper
classification 🌌 astro-ph.HE
keywords emissionnon-thermalmodellingradiosystemsacceleratedaccelerationbinaries
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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.

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