Dr. Shota Shibagaki (Fukuoka, Japan)

Multi-Messenger Signals from Non-Rotating and Rapidly Rotating Stellar Core Collapse

Gravitational waves and neutrinos emitted from the supernova core carry the imprints of the dominant multi-dimensional dynamics inside the proto-neutron star. We explored the impacts of fluid instabilities on the gravitational wave and neutrino signals from a progenitor with various rotations, and revealed characteristic features of gravitational waves and neutrinos and their correlation. In this talk, I show the results of the time-frequency analysis of the gravitational wave and neutrino signals obtained from our simulations and make a comparison between them to find their correlation. I also discuss the detectability of the characteristic features of the gravitational waves and those of the neutrinos.