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Constraints on the amplitude of gravitational wave echoes from black hole ringdown using minimal assumptions


Miani, Andrea; Lazzaro, Claudia; Prodi, Giovanni Andrea; Tiwari, Shubhanshu; Drago, Marco; Milotti, Edoardo; Vedovato, Gabriele (2023). Constraints on the amplitude of gravitational wave echoes from black hole ringdown using minimal assumptions. Physical review D, 108(6):064018.

Abstract

Gravitational wave echoes may appear following a compact binary coalescence if the remnant is an “exotic compact object.” Exotic compact objects are proposed alternatives to the black holes of Einstein’s general relativity theory and are predicted to possess reflective boundaries. This work reports a search for gravitational wave transients (GWTs) of generic morphology occurring shortly after (≲1  s) binary black hole (BBH) mergers, therefore targeting all gravitational wave echo models. We investigated the times after the ringdown for the higher signal-to-noise ratio BBHs within the public catalog GWTC-3 by the LIGO-Virgo-KAGRA collaboration. Our search is based on the coherent WaveBurst pipeline, widely used in generic searches for GWTs by the LIGO-Virgo-KAGRA collaboration, and deploys new methods to enhance its detection performances at low signal-to-noise ratios. We employ Monte Carlo simulations for estimating the detection efficiency of the search and determining the statistical significance of candidates. We find no evidence of previously undetected GWTs and our loudest candidates are morphologically consistent with known instrumental noise disturbances. Finally, we set upper limits on the amplitude of GW echoes for single BBH mergers.

Abstract

Gravitational wave echoes may appear following a compact binary coalescence if the remnant is an “exotic compact object.” Exotic compact objects are proposed alternatives to the black holes of Einstein’s general relativity theory and are predicted to possess reflective boundaries. This work reports a search for gravitational wave transients (GWTs) of generic morphology occurring shortly after (≲1  s) binary black hole (BBH) mergers, therefore targeting all gravitational wave echo models. We investigated the times after the ringdown for the higher signal-to-noise ratio BBHs within the public catalog GWTC-3 by the LIGO-Virgo-KAGRA collaboration. Our search is based on the coherent WaveBurst pipeline, widely used in generic searches for GWTs by the LIGO-Virgo-KAGRA collaboration, and deploys new methods to enhance its detection performances at low signal-to-noise ratios. We employ Monte Carlo simulations for estimating the detection efficiency of the search and determining the statistical significance of candidates. We find no evidence of previously undetected GWTs and our loudest candidates are morphologically consistent with known instrumental noise disturbances. Finally, we set upper limits on the amplitude of GW echoes for single BBH mergers.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:11 September 2023
Deposited On:01 Jan 2024 14:54
Last Modified:28 Jun 2024 03:32
Publisher:American Physical Society
ISSN:2470-0010
OA Status:Closed
Publisher DOI:https://doi.org/10.1103/physrevd.108.064018
Project Information:
  • : FunderCentre National de la Recherche Scientifique
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  • : FunderInstituto Nazionale di Fisica Nucleare
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  • : FunderUniversità degli Studi di Trento
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  • : FunderDutch Nikhef
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