Fermi Gamma-ray Space Telescope

The TANAMI view of the IceCube PeV neutrino events

Felicia Krauss

Abstract:

The IceCube Collaboration has reported the discovery of a neutrino flux in excess of the atmospheric background. Due to low atmospheric background at PeV energies, the highest energy events are the most likely ones to be of extraterrestrial origin. We combine multiwavelength data, including Fermi-LAT, X-ray data and radio VLBI images to construct broadband spectra and presentWe study the multiwavelength properties of AGN from the TANAMI sample that are positionally coincident with the PeV neutrino events. parametrizations of the spectral energy distributions. Assuming the X-ray to $gamma$-ray emission originates in the photoproduction of pions by accelerated protons, the integrated predicted neutrino luminosity of these sources is high enough to explain the detected PeV events.