Ott 2010 坍缩时候的引力波

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Title:		Dynamics and Gravitational Wave Signature of Collapsar Formation
Authors:		Ott, C. D.; Reisswig, C.; Schnetter, E.; O'Connor, E.; Sperhake, U.; Loeffler, F.; Diener, P.; Abdikamalov, E.;Hawke, I.; Burrows, A.
Publication:		eprint arXiv:1012.1853
Publication Date:		12/2010
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics, General Relativity and Quantum Cosmology
Comment:		4 pages, 4 figures, submitted to PRL
Bibliographic Code:		2010arXiv1012.1853O

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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