title: Dynamics and gravitational wave signature of collapsar formation.
abstract: We perform 3+1 general relativistic simulations of rotating core collapse in the context of the collapsar model for long gamma-ray bursts. We employ a realistic progenitor, rotation based on results of stellar evolution calculations, and a simplified equation of state. Our simulations track self-consistently collapse, bounce, the postbounce phase, black hole formation, and the subsequent early hyperaccretion phase. We extract gravitational waves from the spacetime curvature and identify a unique gravitational wave signature associated with the early phase of collapsar formation.
authors: TAPIR, California Institute of Technology, Pasadena, California 91125, USA. cott@tapir.caltech.edu
authors: C D
authors: CD
authors: Ott
authors: C
authors: C
authors: Reisswig
authors: E
authors: E
authors: Schnetter
authors: E
authors: E
authors: O'Connor
authors: U
authors: U
authors: Sperhake
authors: F
authors: F
authors: Löffler
authors: P
authors: P
authors: Diener
authors: E
authors: E
authors: Abdikamalov
authors: I
authors: I
authors: Hawke
authors: A
authors: A
authors: Burrows