GLAST Detectability of Gamma-Ray Emission from Photon Fields of Luminous Stars

Details GLAST Detectability of Gamma-Ray Emission from Photon Fields of Luminous Stars GLAST Detectability of Gamma-Ray Emission from Photon Fields of Luminous Stars

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..921..492o&link_type=abstract

THE FIRST GLAST SYMPOSIUM. AIP Conference Proceedings, Volume 921, pp. 492-493 (2007).

Computer Science

X- And Gamma-Ray Telescopes And Instrumentation, Gamma-Ray Sources, Gamma-Ray Bursts, Supergiant Stars

Scientific paper

Inverse-Compton scattering by cosmic-ray electrons on the CMB and the ISRF produce a major component of the diffuse gamma-ray emission from the Galaxy. The stellar ISRF is not smooth but clumpy due to the large contribution from the most luminous stars. We have shown that the gamma-ray emission from the radiation field of some supergiant stars could be - marginally - detectable by GLAST. We present the basic formalism required and give possible candidate stars to be detected. We also apply the theory to OB associations, showing that inverse-Compton emission produced is not negligible compared to the sensitivity of GLAST.

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