Towards simulation of neutrino emission from core-collapse to black holes

Core-collapse supernovae emit their gravitational energy as neutrino. So far, some studies calculated the emission in case neutron stars are left behind. In the case of black holes, neutrino is also emitted from the surrounding matter. However, the Misner-Sharp metric, which is often employed in simulations, diverges when black holes form. To evade the problem, we are developing a new simulation using the Hernandez-Misner metric.