Poster (Scientific congresses and symposiums)
Non-thermal Hard X-ray Emission from Colliding Wind Binary Systems
Khangulyan, Dmitry; Bosch-Ramon, Valenti; De Becker, Michaël
2012European Week of Astronomy and Space Sciences 2012 - ASTRO-H Special Session
 

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Keywords :
Massive binaries; Particle acceleration; Non-thermal processes; X-rays; Gamma-rays
Abstract :
[en] Colliding-wind massive star binaries are known to produce strong shocks in their wind-wind interaction regions. The interaction region is the scenario of several physical processes, including strong thermal X-ray emission and in several cases particle acceleration up to relativistic energies. The latter process is still poorly understood in these environments, and deserves a particular attention in stellar astrophysics. The investigation of particle acceleration is a critical aspect of high-energy astrophysics, especially at energies above 10 keV where non-thermal emission processes dominate. We discuss the possibility to detect the hard X-ray emission from WR147, a well-known particle accelerator, using Astro-H Hard X-ray Telescope (HXT) and Soft Gamma-Ray Detector (SGD), and to probe the particle acceleration process at work in its colliding-wind region.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Khangulyan, Dmitry
Bosch-Ramon, Valenti
De Becker, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
Non-thermal Hard X-ray Emission from Colliding Wind Binary Systems
Publication date :
July 2012
Number of pages :
Poster
Event name :
European Week of Astronomy and Space Sciences 2012 - ASTRO-H Special Session
Event organizer :
Stéphane Paltani, Marc Audard
Event place :
Rome, Italy
Event date :
2-3 juillet 2012
Audience :
International
Available on ORBi :
since 10 February 2013

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