Gamma-ray counterpart of the IceCube neutrinos - Archive ouverte HAL
Communication Dans Un Congrès Année : 2019

Gamma-ray counterpart of the IceCube neutrinos

M. Kachelriess
  • Fonction : Auteur
A. Neronov
  • Fonction : Auteur

Résumé

A γ-ray excess at high Galactic latitudes starting at energies 300 GeV was recently discovered in the data of the Fermi telescope. The multi-TeV γ-ray emission found has spectral characteristics at both low and high Galactic latitudes compatible with those of the IceCube neutrinos in the same sky regions. This suggests that these γ-rays are the counterpart of the IceCube neutrino signal, implying that a sizeable part of the IceCube neutrino flux originates from the Milky Way. The diffuse neutrino and γ-ray signal at high Galactic latitudes may originate either from a nearby cosmic ray "PeVatron" cosmic ray source, an extended Galactic cosmic ray halo or from decays of heavy dark matter particles.

Dates et versions

hal-02088630 , version 1 (03-04-2019)

Identifiants

Citer

M. Kachelriess, A. Neronov, D.V. Semikoz. Gamma-ray counterpart of the IceCube neutrinos. 26th Extended European Cosmic Ray Symposium and 35th Russian Cosmic Ray Conference, Jul 2018, Barnaul, Russia. pp.012052, ⟨10.1088/1742-6596/1181/1/012052⟩. ⟨hal-02088630⟩
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