Gamma rays and neutrinos from dark matter annihilation in galaxy clusters

  title={Gamma rays and neutrinos from dark matter annihilation in galaxy clusters},
  author={Qiang Yuan and P. Yin and Xiao-jun Bi and Xin-min Zhang and Shou-hua Zhu Key Laboratory of Particle Astrophysics and Institute of Metal Physics and Chinese Academy of Sciences and Institute of Metal Physics and Technology and Peking University and Center for High Energy Physics and Theoretical Physics Division},
  journal={Physical Review D},
The gamma-ray and neutrino emissions from dark matter (DM) annihilation in galaxy clusters are studied. After about one year of operation of Fermi-LAT, several nearby clusters are reported with stringent upper limits of GeV gamma-ray emission. We use the Fermi-LAT upper limits of these clusters to constrain the DM model parameters. We find that the DM model distributed with substructures predicted in cold DM scenario is strongly constrained by Fermi-LAT gamma-ray data. Especially for the… Expand

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