GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Abstract
We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initially identified within 70 s by an online matched-filter search targeting binary coalescences. Subsequent off-line analyses recovered GW151226 with a network signal-to-noise ratio of 13 and a significance greater than 5σ. The signal persisted in the LIGO frequency band for approximately 1 s, increasing in frequency and amplitude over about 55 cycles from 35 to 450 Hz, and reached a peak gravitational strain of 3.4_{-0.9}^{+0.7}×10^{-22}. The inferred source-frame initial black hole masses are 14.2_{-3.7}^{+8.3}M_{⊙} and 7.5_{-2.3}^{+2.3}M_{⊙}, and the final black hole mass is 20.8_{-1.7}^{+6.1}M_{⊙}. We find that at least one of the component black holes has spin greater than 0.2. This source is located at a luminosity distance of 440_{-190}^{+180} Mpc corresponding to a redshift of 0.09_{-0.04}^{+0.03}. All uncertainties define a 90% credible interval. This second gravitational-wave observation provides improved constraints on stellar populations and on deviations from general relativity.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 DevelopmentSeventh Framework ProgrammeAustralian Research CouncilScience and Technology Facilities CouncilAgencia de Cooperación Internacional de Las Illes BalearsNatural Sciences and Engineering Research Council of CanadaMinistry of Science and Technology, TaiwanMinistry of Education, IndiaNational Research Foundation of KoreaNarodowe Centrum NaukiRoyal SocietyMinisterio de Economía y CompetitividadMax-Planck-GesellschaftFundação de Amparo à Pesquisa do Estado de São PauloMinistério da Ciência, Tecnologia e InovaçãoIndustry CanadaGovern de les Illes BalearsNederlandse 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 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
- PhysicsLIGOGravitational waveAstrophysicsBinary black holeGravitational-wave observatoryBlack hole (networking)AmplitudeOptics
- Has abstract in OpenAlex
- yes