Binary Black Hole Mergers in the first Advanced LIGO Observing Run
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Abstract
The first observational run of the Advanced LIGO detectors, from September 12, 2015 to January 19, 2016, saw the first detections of gravitational waves from binary black hole mergers. In this paper we present full results from a search for binary black hole merger signals with total masses up to $100 M_\odot$ and detailed implications from our observations of these systems. Our search, based on general-relativistic models of gravitational wave signals from binary black hole systems, unambiguously identified two signals, GW150914 and GW151226, with a significance of greater than $5σ$ over the observing period. It also identified a third possible signal, LVT151012, with substantially lower significance, and with an 87% probability of being of astrophysical origin. We provide detailed estimates of the parameters of the observed systems. Both GW150914 and GW151226 provide an unprecedented opportunity to study the two-body motion of a compact-object binary in the large velocity, highly nonlinear regime. We do not observe any deviations from general relativity, and place improved empirical bounds on several high-order post-Newtonian coefficients. From our observations we infer stellar-mass binary black hole merger rates lying in the range $9-240 \mathrm{Gpc}^{-3} \mathrm{yr}^{-1}$. These observations are beginning to inform astrophysical predictions of binary black hole formation rates, and indicate that future observing runs of the Advanced detector network will yield many more gravitational wave detections.
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The record
- Venue
- White Rose Research Online (University of Leeds, The University of Sheffield, University of York)
- Topic
- Pulsars and Gravitational Waves Research
- Field
- Physics and Astronomy
- Canadian institutions
- —
- Funders
- Division of Human Resource DevelopmentAustralian Research CouncilScience and Technology Facilities CouncilIstituto Nazionale di Fisica NucleareNatural Sciences and Engineering Research Council of CanadaMinistry of Education, IndiaRoyal SocietyMinisterio de Economía y CompetitividadMax-Planck-GesellschaftNarodowe Centrum NaukiNational Research Foundation of KoreaIndustry CanadaFundação de Amparo à Pesquisa do Estado de São PauloGovern de les Illes BalearsMinistry of Science and Technology of the People's Republic of ChinaNederlandse Organisatie voor Wetenschappelijk OnderzoekCentre National de la Recherche ScientifiqueCouncil of Scientific and Industrial Research, IndiaNational Research FoundationInstituto Nazionale di Fisica NucleareEuropean CommissionRussian Foundation for Basic ResearchCanadian Institute for Advanced ResearchMinistero dello Sviluppo EconomicoInstitut des Origines de LyonLeverhulme TrustScottish Funding CouncilScottish Universities Physics AllianceHungarian Scientific Research FundOntario Ministry of Economic Development and InnovationScience and Engineering Research BoardNational Science FoundationKavli FoundationResearch Corporation for Science Advancement
- Keywords
- LIGOPhysicsBinary black holeGravitational waveBlack hole (networking)AstrophysicsBinary numberGeneral relativityAstronomyIntermediate-mass black holeTheoretical physicsComputer science
- Has abstract in OpenAlex
- yes