The neutrino-dominated accretion flow (NDAF) model successfully explains the observed blackbody components in the gamma-ray burst (GRB) spectra, supporting the theory that these bursts are powered by a black hole engine.
Close binary star systems with black hole accretion disk engines offer a compelling explanation for the formation of long-duration gamma-ray bursts (lGRBs), low-luminosity GRBs, ultra-long GRBs, and broad-lined Type Ic supernovae (Ic-BL SNe).