Massive stars in colliding wind systems: the GLAST perspective

Details Massive stars in colliding wind systems: the GLAST perspective Massive stars in colliding wind systems: the GLAST perspective

2007-05-10

arxiv.org/abs/0705.1539v1

AIP Conf.Proc.921:217-219,2007

Astronomy and Astrophysics

Astrophysics

3 pages, 3 figures; to appear in the Proc. of the First Int. GLAST Symp. (Stanford, Feb. 5-8, 2007), eds. S.Ritz, P.F.Michelso

Scientific paper

10.1063/1.2757304

Colliding winds of massive stars in binary systems are considered as candidate sites of high-energy non-thermal photon emission. They are already among the suggested counterparts for a few individual unidentified EGRET sources, but may constitute a detectable source population for the GLAST observatory. The present work investigates such population study of massive colliding wind systems at high-energy gamma-rays. Based on the recent detailed model (Reimer et al. 2006) for non-thermal photon production in prime candidate systems, we unveil the expected characteristics of this source class in the observables accessible at LAT energies. Combining the broadband emission model with the presently cataloged distribution of such systems and their individual parameters allows us to conclude on the expected maximum number of LAT-detections among massive stars in colliding wind binary systems.

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