High-energy astrophysical neutrinos from interactions in the Local Bubble
July 22, 2019
July 02, 2021
A signal of high-energy extraterrestrial neutrinos was discovered by the IceCube experiment . Neutrinos are always produced together with gamma-rays, but the gamma-ray flux from extra- galactic sources cascade down to GeV energies due to attenuation in the intergalactic medium. Hard muon neutrino flux at E > 100 TeV consistent with extragalactic diffuse gamma-ray back- ground measured by Fermi LAT, however soft component of cascade neutrino flux at E < 100 TeV is in conflict with it. Moreover recently a gamma-ray excess at high Galactic latitudes at energies E > 300 GeV in the data of the Fermi telescope was reported  . Gamma-ray excess at TeV and neutrino excess at E < 100 TeV can have common galactic origin. In this work we study possibility that both excess in IceCube astrophysical neutrino flux and gamma-ray excess at high galactic latitudes come from interactions of PeV cosmic rays from recent nearby source, like Vela in the walls of Local Bubble.
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating
very compact bibliographies which can be beneficial to authors and
readers, and in "proceeding" format
which is more detailed and complete.