Multi-Messenger gamma-ray and neutrino signals from Galactic and extragalactic sources



I will review models of possible origin of the all-sky astrophysical neutrino signal in the energy range 0.01-10 PeV detected by IceCube and discuss its connection to the all-sky gamma-ray signal measured by Fermi telescope in the TeV band. I will show that consistency of the Fermi and IceCube all-sky spectra indicate the presence of nearby (Galactic neutrino source(s) contribution to the neutrino signal in sub-PeV range. At the same time, I will show that a possibility that hard multi-PeV neutrino signal is explained by population of distant blazars, in spite of the absence of correlation of neutrino arrival directions with positions of known gamma-ray emitting sources of this class. 

Dates: 

Mardi, 29 janvier, 2019 - 14:00 to 15:00

Salle / Local: 

646A - Mondrian

Nom/Prénom // Last name/First name: 

A. Neronov

Affiliation: 

APC, Paris

Equipe organisatrice / Organizing team: 

  • Théorie