Finding Black Holes in Supernovae

Shmulik Balberg (UIUC)

1 pm Monday March 27

If a black hole formed in a core-collapse supernova is accreting material from the base of the envelope, the accretion luminosity may produce an observable effect on the supernova light curve. The conditions which would be favorable for detection of the black hole emergence. are examined with analytic estimates and a fully relativistic numerical investigation of the fallback of matter onto a black hole. In general, energy generation by radioactive decays is likely to prevent practical detection of the black hole, but low energy explosions of more massive stars may provide an important exception. One particular case of is that of SN1997D in NGC1536, where the emergence of the black hole may (just barely) observable.