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01242 am a22002293u 4500 |
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|a Ott, C.D.
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|a Reisswig, C.
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|a Schnetter, E.
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|a O'Connor, E.
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|a Sperhake, U.
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|a Loeffler, F.
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|a Diener, P.
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|a Abdikamalov, E.
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|a Hawke, I.
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|a Burrows, A.
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|a Dynamics and gravitational wave signature of collapsar formation
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|c 2010-12-08.
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|u https://eprints.soton.ac.uk/180747/1/1012.1853v1
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|a 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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