Speaker
Julia Tjus
Description
Recently, the IceCube collaboration has announced a first evidence of a high-energy neutrino signal from astrophysical sources. The signal, based on a number of 28 events, is at a level of approximately $E^{2}*dN/dE\sim 10^{-8}$ GeV/(s sr cm$^{2}$) and at this point does not show any directional correlation. In this talk, the different cosmic ray emitting source candidates are reviewed in the context of this signal. Multimessenger information is used in order to investigate which of the source classes can be responsible for the signal and which can be excluded. We focus on the most prominent potential cosmic ray emitters like Supernova Remnats and starburst galaxies as PeV-accelerators and extragalactic sources like Active Galaxies and gamma-ray bursts as possible sources to explain the flux of ultra high-energy cosmic rays.
Summary
The IceCube signal will be reviewed in the context of the modeling of potential cosmic ray accelerators like SNRs, starbursts, Active Galaxies and gamma-ray bursts.
