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  Parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library

Veitch, J., Raymond, V., Farr, B., Farr, W. M., Graff, P., Vitale, S., et al. (2015). Parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library. Physical Review D, 91(4): 042003. doi:10.1103/PhysRevD.91.042003.

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Genre: Zeitschriftenartikel
Andere : Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library

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 Urheber:
Veitch, John, Autor
Raymond, Vivien, Autor
Farr, Benjamin, Autor
Farr, Will M., Autor
Graff, Philip, Autor
Vitale, Salvatore, Autor
Aylott, Ben, Autor
Blackburn, Kent, Autor
Christensen, Nelson, Autor
Coughlin, Michael, Autor
Del Pozzo, Walter, Autor
Feroz, Farhan, Autor
Gair, Jonathan, Autor
Haster, Carl-Johan, Autor
Kalogera, Vicky, Autor
Littenberg, Tyson, Autor
Mandel, Ilya, Autor
O'Shaughnessy, Richard, Autor
Pitkin, Matthew, Autor
Rodriguez, Carl, Autor
Röver, Christian1, Autor           Sidery, Trevor, AutorSmith, Rory, AutorVan Der Sluys, Marc, AutorVecchio, Alberto, AutorVousden, Will, AutorWade, Leslie, Autor mehr..
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Zusammenfassung: The Advanced LIGO and Advanced Virgo gravitational wave (GW) detectors will begin operation in the coming years, with compact binary coalescence events a likely source for the first detections. The gravitational waveforms emitted directly encode information about the sources, including the masses and spins of the compact objects. Recovering the physical parameters of the sources from the GW observations is a key analysis task. This work describes the LALInference software library for Bayesian parameter estimation of compact binary signals, which builds on several previous methods to provide a well-tested toolkit which has already been used for several studies. We show that our implementation is able to correctly recover the parameters of compact binary signals from simulated data from the advanced GW detectors. We demonstrate this with a detailed comparison on three compact binary systems: a binary neutron star, a neutron star black hole binary and a binary black hole, where we show a cross-comparison of results obtained using three independent sampling algorithms. These systems were analysed with non-spinning, aligned spin and generic spin configurations respectively, showing that consistent results can be obtained even with the full 15-dimensional parameter space of the generic spin configurations. We also demonstrate statistically that the Bayesian credible intervals we recover correspond to frequentist confidence intervals under correct prior assumptions by analysing a set of 100 signals drawn from the prior. We discuss the computational cost of these algorithms, and describe the general and problem-specific sampling techniques we have used to improve the efficiency of sampling the compact binary coalescence parameter space.

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 Datum: 2014-09-252015-02-162015
 Publikationsstatus: Erschienen
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Titel: Physical Review D
  Andere : Phys. Rev. D.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Lancaster, Pa. : American Physical Society
Seiten: - Band / Heft: 91 (4) Artikelnummer: 042003 Start- / Endseite: - Identifikator: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258