The Galactic Center GeV Excess from a Series of Leptonic Cosmic-Ray Outbursts

  title={The Galactic Center GeV Excess from a Series of Leptonic Cosmic-Ray Outbursts},
  author={Ilias Cholis and Carmelo Evoli and Francesca Calore and Tim Linden and C Weniger and Dan Hooper},
  journal={arXiv: High Energy Astrophysical Phenomena},
It has been proposed that a recent outburst of cosmic-ray electrons could account for the excess of GeV-scale gamma rays observed from the region surrounding the Galactic Center. After studying this possibility in some detail, we identify scenarios in which a series of leptonic cosmic-ray outbursts could plausibly generate the observed excess. The morphology of the emission observed outside of $\sim1^{\circ}-2^{\circ}$ from the Galactic Center can be accommodated with two outbursts, one which… 

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