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Delia Volpi

Modeling the synchrotron emission from O-star colliding wind binaries

Article Open Access


Many early-type stars are in binary systems. A number of them show radio emissivity with periodic variability. This variability is associated with non-thermal synchrotron radiation emitted by relativistic electrons. The strong shocks necessary to accelerate the electrons up to high energies are produced by the collision of the radiatively-driven stellar winds. A study of the non-thermal emission is necessary in order to investigate O-star colliding wind binaries. Here preliminary results of our modeling of the colliding winds in Cyg OB2 No. 9 are presented.

Pour citer cet article

Delia Volpi, «Modeling the synchrotron emission from O-star colliding wind binaries», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 733 - 737 URL :

A propos de : Delia Volpi

Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium