High-energy Astrophysical Phenomena in Black Holes and Supernovae
This project aims to elucidate the history of black hole formation and evolution, the mechanisms of high-energy phenomena around black holes affecting the star formation and galaxy evolutioin. The mechanism of gravitationally collapsing supernovae explosion, which is the key to the matter cycle in the universe, will be clarified by three-dimensional radiation hydrodynamics simulations based on first-principles calculations in which the neutrino radiation transport, physical processes related to atomic nuclei and neutrinos are more precisely treated.
Objectives and methods of this project
We will elucidate the structure and dynamics of black hole accretion disks, and clarify the production mechanism of relativistic jets. Furthermore, we will clarify the growth process of supermassive black holes and the effect of their growth on the evolution of surrounding stars and galaxies. We will elucidate the mechanism of supernova explosions using first-principles calculations of three-dimensional neutrino radiation hydrodynamics.
University of Tsukuba, Chiba University, Waseda University, National Astronomical Observatory of Japan, Numazu National College of Technology, and 8 partner institutions in Japan and overseas
Research Director: Ken Ohsuga (Professor, Center for Computational Sciences, University of Tsukuba)
Accretion disks and relativistic jets around black holes
(Takahashi et al. 2016)
Left: ELT observation of the massive black hole M87
Right: Simulated image by the general relativistic radiation transport code RAIKOU
(Kawashima et al. 2019, EHT collaboration 2019)
Schematic picture of a supernova explosion based on a 3D simulation of a supernova
(Takiwaki et al. 2014).