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arXiv · 1012.1853

Dynamics and Gravitational Wave Signature of Collapsar Formation

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

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C. D. Ott, C. Reisswig, E. Schnetter, E. O'Connor, U. Sperhake, F. Loeffler, P. Diener, E. Abdikamalov, I. Hawke, A. Burrows. 2010-12-08. Dynamics and Gravitational Wave Signature of Collapsar Formation. https://doi.org/10.1103/physrevlett.106.161103

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