Gamma-Ray Bursts : The Central Engine

  title={Gamma-Ray Bursts : The Central Engine},
  author={Stan Woosley},
A variety of arguments suggest that the most common form of gammaray bursts (GRBs), those longer than a few seconds, involve the formation of black holes in supernova-like events. Two kinds of “collapsar” models are discussed, those in which the black hole forms promptly a second or so after iron core collapse and those in which formation occurs later, following “fallback” over a period of minutes to hours. In most cases, extraction of energy from a rapidly accreting disk (and a rapidly… CONTINUE READING