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Massive Non-Thermal Radio Emitters: New Data and their Modeling
Volpi, D.; Blomme, R.; De Becker, Michaël et al.
2013In Astronomical Society of the Pacific Conference Series
 

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Abstract :
[en] During recent years some non-thermal radio emitting OB stars have been discovered to be binary or multiple systems. The non-thermal emission is due to synchrotron radiation that is emitted by electrons accelerated up to high energies. The electron acceleration occurs at the strong shocks created by the collision of radiatively-driven winds. Here we summarize the available radio data and more recent observations for the binary Cyg OB2 No. 9. We also show a new emission model which is being developed to compare the theoretical total radio flux and the spectral index with the observed radio light curves. This comparison will be useful in order to solve fundamental questions, such as the determination of the stellar mass-loss rates, which are perturbed by clumping.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Volpi, D.
Blomme, R.
De Becker, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Nazé, Yaël  ;  Université de Liège - ULiège > GAPHE : Astrophysique observationnelle (sol et espace)
Rubert, C.
St-Louis, N.
Moffat, A. F. J.
Language :
English
Title :
Massive Non-Thermal Radio Emitters: New Data and their Modeling
Publication date :
01 January 2013
Event name :
Scientific Meeting in Honor of Anthony F. J. Moffat
Event place :
St-Michel-Des-Saints, Canada
Event date :
du 11 au 15 juillet 2011
Audience :
International
Main work title :
Astronomical Society of the Pacific Conference Series
Pages :
369
Commentary :
465
Available on ORBi :
since 21 January 2013

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