Quiescence and late time activity in collapsars due to critical angular momentum distributions

Abstract

Even thought a large amount of long gamma ray bursts (LGRBs) present quiescent periods, their origin remains unclear. In this talk, it is shown how different angular momentum distributions, as a function of the stellar radius), can lead to neutrino luminosity variability and the possibility of quiescent epochs in LGRBs.

Proceedings for "The shocking Universe: Gamma-Ray Bursts and High Energy Shock Phenomena in the Universe", Venice 2009