BLACK HOLE FORMATION IN FAILING CORE-COLLAPSE SUPERNOVAE

We present results of a systematic study of failing core-collapse supernovae and the formation of stellar-mass black holes (BHs). Using our open-source general-relativistic 1.5D code GR1D equipped with a three-species neutrino leakage/heating scheme and over 100 presupernova models, we study the effects of the choice of nuclear equation
\nof state (EOS), zero-age main sequence (ZAMS) mass and metallicity, rotation, and mass-loss prescription on
\nBH formation. We find that the outcome, for a given EOS, can be estimated, to first order, by a single parameter,
\nthe compactness of the stellar core at bounce. By comparing protoneutron star (PNS) structure at the onset
\nof gravitational…