2024-06-26

Speaker: Shigeo Kimura

Abstract:

Cosmic high-energy neutrinos are expected to be a smoking-gun signature to identify the origin of high-energy cosmic rays. IceCube experiment reported detection of cosmic high-energy neutrinos in 2013, the origin of which became a new mystery in astrophysics. In order to identify the cosmic neutrino sources, multi-messenger observational and analysis technics are now rapidly developing. In this talk, I will review the progress of high-energy neutrino astrophysics, discuss high-energy neutrino emission model in radio-quiet active galactic nuclei, and introduce our effort to identify neutrino sources using optical observational data.