Low energy gamma ray emission from the Cygnus OB2 association

Details Low energy gamma ray emission from the Cygnus OB2 association Low energy gamma ray emission from the Cygnus OB2 association

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nascp3137..424c&link_type=abstract

In NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop p 424-428 (SEE N92-21874 12-90)

Astronomy and Astrophysics

Astronomy

Early Stars, Emission Spectra, Gamma Ray Astronomy, Gamma Ray Spectra, Gamma Rays, Stellar Envelopes, Stellar Radiation, Stellar Spectra, Stellar Winds, Chaos, Cygnus Constellation, Galactic Radiation, Gamma Ray Telescopes

Scientific paper

According to our newly developed model of gamma-ray emission from chaotic early-type stellar winds, we predict the combined gamma-ray flux from the circumstellar winds of many very luminous early-type stars in the Cyg OB2 association can be detectable by the Energetic Gamma Ray Experiment Telescope (EGRET) (and maybe also by OSSE) on CGRO. Due to different radiation mechanisms, the gamma-ray spectrum from stellar winds can be quite different from that of CYG X-3; this spectral difference and the time-variation of Cyg X-3 flux will help to distinguish the gamma-ray components from different sources in this small region, which is spatially unresolvable by CGRO.

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