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

doi:10.1088/1742-6596/718/4/042010

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

Institute of Cosmology & Gravitation

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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 language	English
Article number	042010
Number of pages	5
Journal	Journal of Physics: Conference Series
Volume	718
Issue number	4
DOIs	https://doi.org/10.1088/1742-6596/718/4/042010
Publication status	Published - 9 Jun 2016
Event	14th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2015 - Torino, Italy Duration: 7 Sept 2015 → 11 Sept 2015

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Calore_2016_J._Phys.__Conf._Ser._718_042010Final published version, 1.14 MBLicence: CC BY

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title = "The Fermi GeV excess: challenges for the dark matter interpretation",

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.",

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

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T1 - The Fermi GeV excess

T2 - 14th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2015

AU - Calore, Francesca

AU - Bozorgnia, Nassim

AU - Lovell, Mark

AU - Bertone, Gianfranco

AU - Schaller, Matthieu

AU - Frenk, Carlos S.

AU - Crain, Robert A.

AU - Schaye, Joop

AU - Theuns, Tom

AU - Trayford, James W.

PY - 2016/6/9

Y1 - 2016/6/9

N2 - 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.

AB - 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.

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U2 - 10.1088/1742-6596/718/4/042010

DO - 10.1088/1742-6596/718/4/042010

M3 - Conference article

AN - SCOPUS:84981193840

SN - 1742-6588

VL - 718

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 4

M1 - 042010

Y2 - 7 September 2015 through 11 September 2015

ER -

The Fermi GeV excess: challenges for the dark matter interpretation

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