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  Towards Rapid Parameter Estimation on Gravitational Waves from Compact Binaries using Interpolated Waveforms

Smith, R. J. E., Cannon, K., Hanna, C., Keppel, D., & Mandel, I. (2013). Towards Rapid Parameter Estimation on Gravitational Waves from Compact Binaries using Interpolated Waveforms. Physical Review D, 87: 122002. doi:10.1103/PhysRevD.87.122002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-E97A-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-1576-D
Genre: Journal Article

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 Creators:
Smith, R. J. E., Author
Cannon, K., Author
Hanna, C., Author
Keppel, D.1, Author              
Mandel, I., Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,General Relativity and Quantum Cosmology, gr-qc
 Abstract: Accurate parameter estimation of gravitational waves from coalescing compact binary sources is a key requirement for gravitational-wave astronomy. Evaluating the posterior probability density function of the binary's parameters (component masses, sky location, distance, etc.) requires computing millions of waveforms. The computational expense of parameter estimation is dominated by waveform generation and scales linearly with the waveform computational cost. Previous work showed that gravitational waveforms from non-spinning compact binary sources are amenable to a truncated singular value decomposition, which allows them to be reconstructed via interpolation at fixed computational cost. However, the accuracy requirement for parameter estimation is typically higher than for searches, so it is crucial to ascertain that interpolation does not lead to significant errors. Here we provide a proof of principle to show that interpolated waveforms can be used to recover posterior probability density functions with negligible loss in accuracy with respect to non-interpolated waveforms. This technique has the potential to significantly increase the efficiency of parameter estimation.

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 Dates: 2012-11-0620132013
 Publication Status: Published in print
 Pages: 7 pages, 2 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1211.1254
DOI: 10.1103/PhysRevD.87.122002
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 87 Sequence Number: 122002 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258