The Fermi GeV excess: challenges for the dark matter interpretation

Francesca Calore, Nassim Bozorgnia, Mark Lovell, Gianfranco Bertone, Matthieu Schaller, Carlos S. Frenk, Robert A. Crain, Joop Schaye, Tom Theuns, James W. Trayford

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Abstract

One of the most exciting recent results in the field of dark matter indirect searches has been the discovery of an excess emission in gamma rays from the Galactic centre above the standard astrophysical background. We show that current hydrodynamic simulations, namely simulated Milky Way-like galaxies within the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) project, challenge the possibility to interpret the GeV excess as due to annihilation of dark matter particles in the halo if the Milky Way.

Original languageEnglish
Article number042010
Number of pages5
JournalJournal of Physics: Conference Series
Volume718
Issue number4
DOIs
Publication statusPublished - 9 Jun 2016
Event14th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2015 - Torino, Italy
Duration: 7 Sep 201511 Sep 2015

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