GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
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Abstract
We describe the observation of GW170104, a gravitational-wave signal produced by the coalescence of a pair of stellar-mass black holes. The signal was measured on January 4, 2017 at 10∶11:58.6 UTC by the twin advanced detectors of the Laser Interferometer Gravitational-Wave Observatory during their second observing run, with a network signal-to-noise ratio of 13 and a false alarm rate less than 1 in 70 000 years. The inferred component black hole masses are 31.2_{-6.0}^{+8.4}M_{⊙} and 19.4_{-5.9}^{+5.3}M_{⊙} (at the 90% credible level). The black hole spins are best constrained through measurement of the effective inspiral spin parameter, a mass-weighted combination of the spin components perpendicular to the orbital plane, χ_{eff}=-0.12_{-0.30}^{+0.21}. This result implies that spin configurations with both component spins positively aligned with the orbital angular momentum are disfavored. The source luminosity distance is 880_{-390}^{+450} Mpc corresponding to a redshift of z=0.18_{-0.07}^{+0.08}. We constrain the magnitude of modifications to the gravitational-wave dispersion relation and perform null tests of general relativity. Assuming that gravitons are dispersed in vacuum like massive particles, we bound the graviton mass to m_{g}≤7.7×10^{-23} eV/c^{2}. In all cases, we find that GW170104 is consistent with general relativity.
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The record
- Venue
- Physical Review Letters
- Topic
- Pulsars and Gravitational Waves Research
- Field
- Physics and Astronomy
- Canadian institutions
- Canadian Institute for Theoretical AstrophysicsUniversity of Toronto
- Funders
- Division of Human Resource DevelopmentAustralian Research CouncilScience and Technology Facilities CouncilUniversitat de les Illes BalearsNatural Sciences and Engineering Research Council of CanadaMinistry of Education, IndiaNarodowe Centrum NaukiNational Research Foundation of KoreaMinistério da Ciência, Tecnologia e InovaçãoMax-Planck-GesellschaftRoyal SocietyMinisterio de Economía y CompetitividadIndustry CanadaGovern 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 FoundationAbdus Salam International Centre for Theoretical PhysicsInstituto Nazionale di Fisica NucleareEuropean CommissionRussian Foundation for Basic ResearchICTP South American Institute for Fundamental ResearchCanadian Institute for Advanced ResearchMinistero dello Sviluppo EconomicoInstitut des Origines de LyonLeverhulme TrustScottish Funding CouncilStichting voor Fundamenteel Onderzoek der MaterieScottish Universities Physics AllianceHungarian Scientific Research FundIstituto Nazionale di Fisica NucleareDepartment of Science and Technology, Ministry of Science and Technology, IndiaOntario Ministry of Economic Development and InnovationScience and Engineering Research BoardNational Science FoundationKavli Foundation
- Keywords
- PhysicsAstrophysicsGravitational waveBlack hole (networking)GravitonGeneral relativityAngular momentumGravitationQuantum mechanicsClassical mechanics
- Has abstract in OpenAlex
- yes