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Evidence for a discrete source contribution to low-energy continuum Galactic gamma-rays

A. W. Strong·I. V. Moskalenko
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Abstract

Models for the diffuse Galactic continuum emission and synchrotron radiation show that it is difficult to reproduce observations of both of these from the same population of cosmic-ray electrons. This indicates that an important contributor to the emission below 10 MeV could be an unresolved point-source population. We suggest that these could be Crab-like sources in the inner Galaxy. Alternatively a sharp upturn in the electron spectrum below 200 MeV is required.

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A. W. Strong, I. V. Moskalenko. 1999-12-06. Evidence for a discrete source contribution to low-energy continuum Galactic gamma-rays. https://doi.org/10.1063/1.1303219

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