Speaker
Description
Neutrino transport is crucial in core-collapse supernova simulations because neutrino transport effect the post-bounce evolution. In this study, we investigate the impact of modified neutrino–matter interactions in GR1D. The standard bremsstrahlung treatment is based on the Burrows et al. non-degenerate formulation, whereas neutron core in the proto-neutron star can become degenerate. We include axial-vector quenching based on Carter and Prakash's result, effective-mass corrections from the equation of state, and Friman–Maxwell bremsstrahlung emissivities for degenerate matter. These rates are combined into a hybrid treatment that applies the Friman–Maxwell results in degenerate region, and the Burrows et al. results in non-degenerate region. The hybrid model reduces the neutrino Luminosity compared with the original non-degenerate data. These results suggest that degeneracy effects and in-medium corrections are important for modeling neutrino Luminosity in core-collapse supernovae.
