A comment on the emission from the Galactic Center as seen by the Fermi telescope

Details A comment on the emission from the Galactic Center as seen by the Fermi telescope A comment on the emission from the Galactic Center as seen by the Fermi telescope

2010-12-28

arxiv.org/abs/1012.5839v1

Phys. Lett. B 705 (2011), pp. 165-169

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1016/j.physletb.2011.10.014

In the recent paper of Hooper & Goodenough (1010.2752) it was reported that gamma-ray emission from the Galactic Center region contains an excess compared to the contributions from the large-scale diffuse emission and known point sources. This excess was argued to be consistent with a signal from annihilation of Dark Matter with a power law density profile. We reanalyze the Fermi data and find instead that it is consistent with the "standard model" of diffuse emission and of known point sources. The main reason for the discrepancy with the interpretation of 1010.2752 is different (as compared to the previous works) spectrum of the point source at the Galactic Center assumed in 1010.2752. We discuss possible reasons for such an interpretation.

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