Title：The cosmic high energy diffuse neutrino and gamma-ray backgrounds: challenges for astrophysical models
Speaker：Prof. Peter Meszaros (Pennsylvania State University)
Abstract：The IceCube Antarctic Cherenkov telescope has detected a diffuse neutrino background flux at TeV to Pev energies which is of astrophysical origin, while the Fermi spacecraft has detected a diffuse 0.1-300 GeV diffuse gamma-ray background flux, neither of whose origin is obvious. I will discuss several astrophysical source models addressing these issues, including galaxy mergers, star-burst galaxies, low-luminosity gamma-ray bursts and supernovae.
Time：14 Dec.(Wednesday), 15:00pm
Place：212 Room, Astronomy Building