Speaker
Description
We propose a novel approach to investigate the mysterious origin of enhanced circumstellar material (CSM) surrounding a collapsing massive star using neutrinos. Here, non-thermal TeV neutrinos produced from ejecta–CSM interactions and thermal MeV neutrinos from a pre-explosion burning process are related under the assumption that CSM had been created through the pre-supernova neutrino release. Our idea initiates astrophysical studies utilizing neutrinos from multiple energy regimes. In this presentation, we show the calculated spectrum and light curve of high-energy neutrinos derived from a representative pre-supernova model as well as the detected event rates along time at JUNO and IceCube. In addition, we discuss the application range of the proposed method.
