Author ORCID Identifier
Poggiani, Rosa P-8801-2018 https://orcid.org/0000-0002-9968-2464 Naticchioni, Luca AAB-7775-2019 https://orcid.org/0000-0003-2918-0730 Samajdar, Anuradha AAA-3165-2022 https://orcid.org/0000-0002-0857-6018 Favata, Marc AAA-6755-2022 https://orcid.org/0000-0001-8270-9512 Nelemans, Gijs D-3177-2012 https://orcid.org/0000-0002-0752-2974 Chiadini, Francesco E-1812-2015 https://orcid.org/0000-0002-9339-8622 Marquina, Antonio F-8755-2012 https://orcid.org/0000-0001-8767-4208 Christensen, Nelson AAH-9184-2019 https://orcid.org/0000-0002-6870-4202 SHCHEBLANOV, Nikita D-3713-2011 https://orcid.org/0000-0001-8696-2435 Chincarini, Andrea AAB-2028-2022 https://orcid.org/0000-0003-4094-9942 Di Renzo, Francesco https://orcid.org/0000-0002-5447-3810 Thrane, Eric https://orcid.org/0000-0002-4418-3895 Hollows, Ian https://orcid.org/0000-0002-3404-6459 Stuver, Amber L-9985-2018 https://orcid.org/0000-0003-0324-5735 Gergely, Laszlo Arpad X-7693-2018 https://orcid.org/0000-0003-3146-6201 Edelman, Bruce https://orcid.org/0000-0001-7648-1689 CARAPELLA, Giovanni https://orcid.org/0000-0002-0095-1434 MARTINEZ, MARIO I-3549-2015 https://orcid.org/0000-0002-3135-945X Bejger, Michal https://orcid.org/0000-0002-4991-8213 RAZZANO, MASSIMILIANO https://orcid.org/0000-0003-4825-1629 Kumar, Prayush https://orcid.org/0000-0001-5523-4603 Arun, K G https://orcid.org/0000-0002-6960-8538 Singh, Neha https://orcid.org/0000-0002-1135-3456 Strang, Lucy https://orcid.org/0000-0001-7834-9235 Helmling-Cornell, Adrian https://orcid.org/0000-0002-7709-8638 Anderson, Warren https://orcid.org/0000-0003-0482-5942 Buscicchio, Riccardo https://orcid.org/0000-0002-7387-6754
Document Type
Article
Publication Date
12-2021
Abstract
We search for signatures of gravitational lensing in the gravitational-wave signals from compact binary coalescences detected by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) and Advanced Virgo during O3a, the first half of their third observing run. We study: (1) the expected rate of lensing at current detector sensitivity and the implications of a non-observation of strong lensing or a stochastic gravitational-wave background on the merger-rate density at high redshift; (2) how the interpretation of individual high-mass events would change if they were found to be lensed; (3) the possibility of multiple images due to strong lensing by galaxies or galaxy clusters; and (4) possible wave-optics effects due to point-mass microlenses. Several pairs of signals in the multiple-image analysis show similar parameters and, in this sense, are nominally consistent with the strong lensing hypothesis. However, taking into account population priors, selection effects, and the prior odds against lensing, these events do not provide sufficient evidence for lensing. Overall, we find no compelling evidence for lensing in the observed gravitational-wave signals from any of these analyses.
Publication Source (Journal or Book title)
ASTROPHYSICAL JOURNAL
Recommended Citation
Abbott, R., & Abbott, T. D. (2021). Search for Lensing Signatures in the Gravitational-Wave Observations from the First Half of LIGO-Virgo's Third Observing Run. ASTROPHYSICAL JOURNAL, 923 (1) https://doi.org/10.3847/1538-4357/ac23db
Comments
Other LSU authors:
C. Austin; H. W. Cain, III; L. Cohen; T. R. Corbitt; T. J. Cullen; J. Glanzer; G. Gonzalez; A. R. Guimaraes; T. Hardwick; M. L Lollie; S. Soni; A. I. Urban
See article for a full list of contributors.