Contribution of point sources to the soft gamma-ray Galactic emission
Regis Terrier, Francois Lebrun, Guillaume Belanger, Andrea Goldwurm, Andrew W. Strong, Volker Schoenfelder, Laurent Bouchet, Jean-Pierre Roques, Arvind Parmar
Abstract
The nature of the soft gamma-ray (20-200 keV) Galactic emission has been a matter of debate for a long time. Previous experiments have tried to separate the point source contribution from the real interstellar emission, but with a rather poor spatial resolution, they concluded that the interstellar emission could be a large fraction of the total Galactic emission. INTEGRAL, having both high resolution and high sensitivity, is well suited to reassess more precisely this problem. Using the INTEGRAL core program Galactic Center Deep Exposure (GCDE), we estimate the contribution of detected point sources to the total Galactic flux.
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