Gravitational Wave and Neutrino Signals from Rotating General-Relativistic Stellar Collapse

We perform 3+1 general relativistic simulations of rotating iron core collapse in massive presupernova stars, employing a finite-temperature nuclear equation of state and a multi-species neutrino leakage scheme, that allows us to capture the effects of deleptonization, neutrino cooling and heating in the postbounce phase. Studying a wide range of progenitor rotation rates and two different presupernova models, we explore the effect of neutrino leakage on the postbounce dynamics and gravitational wave emission. We also study postbounce oscillation modes of protoneutron stars and investigate their imprint on neutrino and gravitational wave signal.