Gaebel, S. M., Veitch, J. , Dent, T. and Farr, W. M. (2019) Digging the population of compact binary mergers out of the noise. Monthly Notices of the Royal Astronomical Society, 484(3), pp. 4008-4023. (doi: 10.1093/mnras/stz225)
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Abstract
Coalescing compact binaries emitting gravitational wave (GW) signals, as recently detected by the Advanced LIGO-Virgo network, constitute a population over the multi-dimensional space of component masses and spins, redshift, and other parameters. Characterizing this population is a major goal of GWobservations and may be approached via parametric models.We demonstrate hierarchical inference for such models with a method that accounts for uncertainties in each binary merger’s individual parameters, for mass-dependent selection effects, and also for the presence of a second population of candidate events caused by detector noise. Thus, the method is robust to potential biases from a contaminated sample and allows us to extract information from events that have a relatively small probability of astrophysical origin.
Item Type: | Articles |
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Additional Information: | This work was supported by STFC grants ST/K005014/2 and ST/M004090/2. TD acknowledges support from the Maria de Maeztu Unit of Excellence MDM-2016- 0692. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Veitch, Dr John |
Authors: | Gaebel, S. M., Veitch, J., Dent, T., and Farr, W. M. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Research Centre: | College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research |
Journal Name: | Monthly Notices of the Royal Astronomical Society |
Publisher: | Oxford University Press |
ISSN: | 0035-8711 |
ISSN (Online): | 1365-2966 |
Published Online: | 22 January 2019 |
Copyright Holders: | Copyright © 2019 The Authors |
First Published: | First published in Monthly Notices of the Royal Astronomical Society 484(3): 4008-4023 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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