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          Institute: MPI für Gravitationsphysik     Collection: Observational Relativity and Cosmology     Display Documents



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ID: 436317.0, MPI für Gravitationsphysik / Observational Relativity and Cosmology
Bayesian reconstruction of gravitational wave burst signals from simulations of rotating stellar core collapse and bounce
Authors:Röver, Christian; Bizouard, Marie-Anne; Christensen, Nelson; Dimmelmeier, Harald; Heng, Ik Siong; Meyer, Renate
Date of Publication (YYYY-MM-DD):2009
Title of Journal:Physical Review D
Volume:80
Sequence Number of Article:102004
Review Status:not specified
Audience:Not Specified
Abstract / Description:Presented in this paper is a technique that we propose for extracting the physical parameters of a rotating stellar core collapse from the observation of the associated gravitational wave signal from the collapse and core bounce. Data from interferometric gravitational wave detectors can be used to provide information on the mass of the progenitor model, precollapse rotation and the nuclear equation of state. We use waveform libraries provided by the latest numerical simulations of rotating stellar core collapse models in general relativity, and from them create an orthogonal set of eigenvectors using principal component analysis. Bayesian inference techniques are then used to reconstruct the associated gravitational wave signal that is assumed to be detected by an interferometric detector. Posterior probability distribution functions are derived for the amplitudes of the principal component analysis eigenvectors, and the pulse arrival time. We show how the reconstructed signal and the principal component analysis eigenvector amplitude estimates may provide information on the physical parameters associated with the core collapse event.
External Publication Status:published
Document Type:Article
Communicated by:Bruce Allen
Affiliations:MPI für Gravitationsphysik/Observational Relativity and Cosmology
MPI für Gravitationsphysik/Teilinstitut Hannover
Identifiers:LOCALID:arXiv:0909.1093
DOI:10.1103/PhysRevD.80.102004
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0909.1093v1.pdf  [514,00 Kb] [Comment:arXiv:0909.1093v1 [gr-qc]]  
 
PhysRevD.80.102004.pdf  [652,00 Kb]   
 
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