Speaker
Description
Type II supernovae explosions are one of the most energetic outflows in the Universe. The neutrino driven collapse of the iron core of supergiant stars is regarded as the most efficient mechanism for explaining the high luminosities in these events. In this talk, we will discuss two different scenarios after the collapse. The first one is a failed supernova forming a proto neutron star that collapses rapidly into a stellar mass black hole. The second is the formation of a proto neutron star after a supernova explosion. We solve the Einstein-Euler equations with the radiation coming from neutrino transport in the core collapse. In both cases, we study the neutrino evolution and emission by using the M1 neutrino approximation for general relativistic core collapse in spherical symmetry.