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Dynamics and Gravitational Wave Signature of Collapsar Formation

Ott, C. D. and Reisswig, C. and Schnetter, E. and O'Connor, E. and Sperhake, U. and Löffler, F. and Diener, P. and Abdikamalov, E. and Hawke, I. and Burrows, A. (2011) Dynamics and Gravitational Wave Signature of Collapsar Formation. Physical Review Letters, 106 (16). Art. No. 161103. ISSN 0031-9007.

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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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Additional Information:© 2011 American Physical Society. Received 8 December 2010; published 22 April 2011. This work was supported in part by NSF under Grants No. AST-0855535, No. OCI-0905046, No. PIF-0904015, No. PHY-0960291, and No. TG-PHY100033 and by the Sherman Fairchild Foundation.
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Sherman Fairchild FoundationUNSPECIFIED
Classification Code:PACS: 97.60.Lf, 04.30.Db, 97.60.Bw, 98.70.Rz
Record Number:CaltechAUTHORS:20110517-152215984
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23700
Deposited By: Jason Perez
Deposited On:17 May 2011 22:36
Last Modified:26 Dec 2012 13:14

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