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Dynamics and gravitational wave signature of collapsar formation

By C.D. Ott, C. Reisswig, E. Schnetter, E. O'Connor, U. Sperhake, F. Loeffler, P. Diener, E. Abdikamalov, I. Hawke and A. Burrows

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 formatio

Topics: QC
Year: 2010
OAI identifier: oai:eprints.soton.ac.uk:180747
Provided by: e-Prints Soton
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