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Search for strongly lensed counterpart images of binary black hole mergers in the first two LIGO observing runs

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@article{77bb8cfa96254c9588626e92575f3678,
title = "Search for strongly lensed counterpart images of binary black hole mergers in the first two LIGO observing runs",
abstract = " Strong gravitational lensing can produce multiple images of the same gravitational-wave signal, each arriving at different times and with different magnification. Previous work has explored if lensed pairs exist among the known high-significance events from the LIGO and Virgo Collaboration{\textquoteright}s GWTC-1 catalog and found no evidence of this. However, the possibility remains that weaker counterparts of these events are present in the data, unrecovered by previous searches. We conduct a targeted search specifically looking for subthreshold lensed images of known binary black hole (BBH) observations from GWTC-1. We recover candidates matching three of the additional events first reported by Venumadhav et al. [Phys. Rev. D 101, 083030 (2020)] but find no evidence for additional BBH events. We also find no evidence that any of the Venumadhav et al. observations are lensed counterparts. We demonstrate how this type of counterpart search can constrain hypotheses about the overall source and lens populations and we rule out at very high confidence the extreme hypothesis that all heavy BBH detections are in fact lensed systems at high redshift with intrinsic masses <15 M⊙. ",
keywords = "gr-qc, astro-ph.CO, astro-ph.HE, RCUK, STFC, ST/T000333/1, ST/I006285/1",
author = "Connor McIsaac and David Keitel and Thomas Collett and Ian Harry and Simone Mozzon and Oliver Edy and David Bacon",
note = "16 pages. Comments welcome. Data release: https://github.com/icg-gravwaves/lensed-o1-o2-data-release. Version accepted for publication in PRD. Supplement merged into main paper following PRD style. Various updates/improvements during review process. Typos corrected",
year = "2020",
month = oct,
day = "15",
doi = "10.1103/PhysRevD.102.084031",
language = "English",
volume = "102",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Institute of Physics Publising LLC",

}

RIS

TY - JOUR

T1 - Search for strongly lensed counterpart images of binary black hole mergers in the first two LIGO observing runs

AU - McIsaac, Connor

AU - Keitel, David

AU - Collett, Thomas

AU - Harry, Ian

AU - Mozzon, Simone

AU - Edy, Oliver

AU - Bacon, David

N1 - 16 pages. Comments welcome. Data release: https://github.com/icg-gravwaves/lensed-o1-o2-data-release. Version accepted for publication in PRD. Supplement merged into main paper following PRD style. Various updates/improvements during review process. Typos corrected

PY - 2020/10/15

Y1 - 2020/10/15

N2 - Strong gravitational lensing can produce multiple images of the same gravitational-wave signal, each arriving at different times and with different magnification. Previous work has explored if lensed pairs exist among the known high-significance events from the LIGO and Virgo Collaboration’s GWTC-1 catalog and found no evidence of this. However, the possibility remains that weaker counterparts of these events are present in the data, unrecovered by previous searches. We conduct a targeted search specifically looking for subthreshold lensed images of known binary black hole (BBH) observations from GWTC-1. We recover candidates matching three of the additional events first reported by Venumadhav et al. [Phys. Rev. D 101, 083030 (2020)] but find no evidence for additional BBH events. We also find no evidence that any of the Venumadhav et al. observations are lensed counterparts. We demonstrate how this type of counterpart search can constrain hypotheses about the overall source and lens populations and we rule out at very high confidence the extreme hypothesis that all heavy BBH detections are in fact lensed systems at high redshift with intrinsic masses <15 M⊙.

AB - Strong gravitational lensing can produce multiple images of the same gravitational-wave signal, each arriving at different times and with different magnification. Previous work has explored if lensed pairs exist among the known high-significance events from the LIGO and Virgo Collaboration’s GWTC-1 catalog and found no evidence of this. However, the possibility remains that weaker counterparts of these events are present in the data, unrecovered by previous searches. We conduct a targeted search specifically looking for subthreshold lensed images of known binary black hole (BBH) observations from GWTC-1. We recover candidates matching three of the additional events first reported by Venumadhav et al. [Phys. Rev. D 101, 083030 (2020)] but find no evidence for additional BBH events. We also find no evidence that any of the Venumadhav et al. observations are lensed counterparts. We demonstrate how this type of counterpart search can constrain hypotheses about the overall source and lens populations and we rule out at very high confidence the extreme hypothesis that all heavy BBH detections are in fact lensed systems at high redshift with intrinsic masses <15 M⊙.

KW - gr-qc

KW - astro-ph.CO

KW - astro-ph.HE

KW - RCUK

KW - STFC

KW - ST/T000333/1

KW - ST/I006285/1

U2 - 10.1103/PhysRevD.102.084031

DO - 10.1103/PhysRevD.102.084031

M3 - Article

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

ER -

ID: 23394195