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Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO-Virgo gravitational-wave transient catalogue

Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO-Virgo gravitational-wave transient catalogue
Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO-Virgo gravitational-wave transient catalogue
Gravitational waves provide a unique tool for observational astronomy. While the first LIGO-Virgo catalogue of gravitational-wave transients (GWTC-1) contains 11 signals from black hole and neutron star binaries, the number of observations is increasing rapidly as detector sensitivity improves. To extract information from the observed signals, it is imperative to have fast, flexible, and scalable inference techniques. In a previous paper, we introduced BILBY: a modular and user-friendly Bayesian inference library adapted to address the needs of gravitational-wave inference. In this work, we demonstrate that BILBY produces reliable results for simulated gravitational-wave signals from compact binary mergers, and verify that it accurately reproduces results reported for the 11 GWTC-1 signals. Additionally, we provide configuration and output files for all analyses to allow for easy reproduction, modification, and future use. This work establishes that BILBY is primed and ready to analyse the rapidly growing population of compact binary coalescence gravitational-wave signals.
Gravitational waves, Methods: data analysis, Stars: black holes, Stars: neutron, Transients: black hole mergers, Transients: neutron star mergers
0035-8711
3295-3319
Romero-Shaw, I. M.
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Talbot, C.
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Biscoveanu, S.
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D'Emilio, V.
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Ashton, G.
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Coughlin, S.
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Galaudage, S.
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Hoy, C.
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Hübner, M.
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Athar, K.
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Banagiri, S.
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Edelman, B.
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Ghosh, Abhirup
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Green, R.
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Keitel, D.
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Kim, A. X.
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Karathanasis, C.
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Lasky, P. D.
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de Lillo, N.
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Lower, M. E.
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Macleod, D.
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Miller, A.
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Millhouse, M.
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Morisaki, S.
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Powell, J.
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Williams, D.
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Williams, M. J.
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Xiao, L.
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Romero-Shaw, I. M.
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Talbot, C.
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Biscoveanu, S.
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D'Emilio, V.
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Ashton, G.
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Berry, C. P.L.
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Coughlin, S.
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Galaudage, S.
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Hoy, C.
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Hübner, M.
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Phukon, K. S.
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Pitkin, M.
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Rizzo, M.
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Sarin, N.
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Smith, R.
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Stevenson, S.
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Arène, M.
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Athar, K.
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Banagiri, S.
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Carney, M.
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Chatziioannou, K.
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Clark, J. A.
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Colleoni, M.
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Cotesta, R.
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Edelman, B.
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Estellés, H.
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García-Quirós, C.
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Ghosh, Abhirup
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Green, R.
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Haster, C. J.
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Husa, S.
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Keitel, D.
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Kim, A. X.
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Hernandez-Vivanco, F.
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Magaña Hernandez, I.
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Karathanasis, C.
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Lasky, P. D.
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de Lillo, N.
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Lower, M. E.
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Macleod, D.
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Miller, A.
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Millhouse, M.
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Morisaki, S.
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Powell, J.
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Williams, D.
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Williams, M. J.
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Xiao, L.
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Romero-Shaw, I. M., Talbot, C., Biscoveanu, S., D'Emilio, V., Ashton, G., Berry, C. P.L., Coughlin, S., Galaudage, S., Hoy, C., Hübner, M., Phukon, K. S., Pitkin, M., Rizzo, M., Sarin, N., Smith, R., Stevenson, S., Vajpeyi, A., Arène, M., Athar, K., Banagiri, S., Bose, N., Carney, M., Chatziioannou, K., Clark, J. A., Colleoni, M., Cotesta, R., Edelman, B., Estellés, H., García-Quirós, C., Ghosh, Abhirup, Green, R., Haster, C. J., Husa, S., Keitel, D., Kim, A. X., Hernandez-Vivanco, F., Magaña Hernandez, I., Karathanasis, C., Lasky, P. D., de Lillo, N., Lower, M. E., Macleod, D., Mateu-Lucena, M., Miller, A., Millhouse, M., Morisaki, S., Powell, J., Williams, D., Williams, M. J. and Xiao, L. (2020) Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO-Virgo gravitational-wave transient catalogue. Monthly Notices of the Royal Astronomical Society, 499 (3), 3295-3319. (doi:10.1093/mnras/staa2850).

Record type: Article

Abstract

Gravitational waves provide a unique tool for observational astronomy. While the first LIGO-Virgo catalogue of gravitational-wave transients (GWTC-1) contains 11 signals from black hole and neutron star binaries, the number of observations is increasing rapidly as detector sensitivity improves. To extract information from the observed signals, it is imperative to have fast, flexible, and scalable inference techniques. In a previous paper, we introduced BILBY: a modular and user-friendly Bayesian inference library adapted to address the needs of gravitational-wave inference. In this work, we demonstrate that BILBY produces reliable results for simulated gravitational-wave signals from compact binary mergers, and verify that it accurately reproduces results reported for the 11 GWTC-1 signals. Additionally, we provide configuration and output files for all analyses to allow for easy reproduction, modification, and future use. This work establishes that BILBY is primed and ready to analyse the rapidly growing population of compact binary coalescence gravitational-wave signals.

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More information

Published date: 21 September 2020
Additional Information: Funding Information: This work is supported through Australian Research Council (ARC) Centre of Excellence CE170100004. PDL is supported through ARC Future Fellowship FT160100112 and ARC Discovery Project DP180103155. ET is supported through ARC Future Fellowship FT150100281 and CE170100004. This work is partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2019R1A2C2006787). NB acknowledges Inspire division, DST, Government of India for the fellowship support. This work is partially supported by the National Science Foundation under Grant No. PHY-1912648. SB, C-JH, and CT acknowledge support of the National Science Foundation, and the LIGO Laboratory. SB is also supported by the Paul and Daisy Soros Fellowship for New Americans and the NSF Graduate Research Fellowship under Grant No. DGE-1122374. This work was partially supported by European Union FEDER funds, the Spanish Ministry of Science and Innovation and the Spanish Agencia Estatal de Investigaci?n grants FPA2016-76821-P and PID2019-106416GBI00/AEI/10.13039/501100011033, the Comunitat Autonoma de les Illes Balears through the Direcci? General de Pol?tica Universitaria i Recerca with funds from the Tourist Stay Tax Law ITS 2017-006 (PRD2018/24), the Vicepresid?ncia i Conselleria d'Innovaci?, Recerca i Turisme, Conselleria d'Educaci?, i Universitats del Govern de les Illes Balears and Fons Social Europeu. MC acknowledges funding from the European Union's Horizon 2020 research and innovation programme, under the Marie Sk?odowska-Curie grant agreement No. 751492. D.K. is supported by the Spanish Ministerio de Ciencia, Innovaci?n y Universidades (ref. BEAGAL 18/00148) and cofinanced by the Universitat de les Illes Balears. This work used BILBY = v0.6.9, BILBYPIPE = v0.3.12, DYNESTY = v1.0.1, LALSUITE =v6.49, and PESUMMARY = v0.5.6. This research has made use of data, software and/or web tools obtained from the Gravitational Wave Open Science Center (Abbott et al. 2019e), a service of LIGO Laboratory, the LIGO Scientific Collaboration and the Virgo Collaboration. Computing was performed on the OzSTAR Australian national facility at Swinburne University of Technology, which receives funding in part from the Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) allocation provided by the Australian Government, LIGO Laboratory computing clusters at California Institute of Technology and LIGO Hanford Observatory supported by National Science Foundation Grants PHY-0757058 and PHY-0823459, and the Quest computing cluster, which is jointly supported by the Office of the Provost, the Office for Research and Northwestern University Information Technology, and funded by the National Science Foundation under Grant No. PHY-1726951. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement PHY-1764464. Virgo is funded by the French Centre National de Recherche Scientifique (CNRS), the Italian Istituto Nazionale della Fisica Nucleare (INFN) and the Dutch Nikhef, with contributions by Polish and Hungarian institutes. Publisher Copyright: © 2020 The Author(s)
Keywords: Gravitational waves, Methods: data analysis, Stars: black holes, Stars: neutron, Transients: black hole mergers, Transients: neutron star mergers

Identifiers

Local EPrints ID: 507988
URI: http://eprints.soton.ac.uk/id/eprint/507988
ISSN: 0035-8711
PURE UUID: 66f4c311-3951-4aeb-801b-7368744d8372
ORCID for G. Ashton: ORCID iD orcid.org/0000-0001-7288-2231
ORCID for M. J. Williams: ORCID iD orcid.org/0000-0001-5386-5567

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Date deposited: 09 Jan 2026 17:36
Last modified: 10 Jan 2026 05:27

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Contributors

Author: I. M. Romero-Shaw
Author: C. Talbot
Author: S. Biscoveanu
Author: V. D'Emilio
Author: G. Ashton ORCID iD
Author: C. P.L. Berry
Author: S. Coughlin
Author: S. Galaudage
Author: C. Hoy
Author: M. Hübner
Author: K. S. Phukon
Author: M. Pitkin
Author: M. Rizzo
Author: N. Sarin
Author: R. Smith
Author: S. Stevenson
Author: A. Vajpeyi
Author: M. Arène
Author: K. Athar
Author: S. Banagiri
Author: N. Bose
Author: M. Carney
Author: K. Chatziioannou
Author: J. A. Clark
Author: M. Colleoni
Author: R. Cotesta
Author: B. Edelman
Author: H. Estellés
Author: C. García-Quirós
Author: Abhirup Ghosh
Author: R. Green
Author: C. J. Haster
Author: S. Husa
Author: D. Keitel
Author: A. X. Kim
Author: F. Hernandez-Vivanco
Author: I. Magaña Hernandez
Author: C. Karathanasis
Author: P. D. Lasky
Author: N. de Lillo
Author: M. E. Lower
Author: D. Macleod
Author: M. Mateu-Lucena
Author: A. Miller
Author: M. Millhouse
Author: S. Morisaki
Author: J. Powell
Author: D. Williams
Author: M. J. Williams ORCID iD
Author: L. Xiao

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