Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.241103
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Funding
- EGO consortium
- Council of Scientific and Industrial Research of India
- Department of Science and Technology, India
- Science AMP
- Engineering Research Board (SERB), India
- Ministry of Human Resource Development, India
- Spanish Ministerio de Economia y Competitividad
- Conselleria d'Economia i Competitivitat of the Govern de les Illes Balears
- Conselleria d'Educacio, Cultura i Universitats of the Govern de les Illes Balears
- National Science Centre of Poland
- European Commission
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- Lyon Institute of Origins (LIO)
- National Research Foundation of Korea
- Industry Canada
- Province of Ontario through the Ministry of Economic Development and Innovation
- Natural Sciences and Engineering Research Council of Canada
- Canadian Institute for Advanced Research, Taiwan
- Brazilian Ministry of Science, Technology, and Innovation
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- Russian Foundation for Basic Research
- Leverhulme Trust
- Research Corporation, Ministry of Science and Technology (MOST), Taiwan
- Kavli Foundation
- STFC [ST/I006269/1, ST/N000633/1, ST/I006285/1, ST/N005406/1, ST/L000326/1, ST/L000946/1, ST/M005844/1, ST/N00003X/1, PPA/G/S/2002/00652, Gravitational Waves, ST/K005014/1, PP/C505791/1, ST/L003465/1, ST/N000064/1, ST/N000072/1, ST/N005716/1, ST/J00166X/1, ST/J000019/1, ST/L000954/1, ST/I006242/1, ST/M004090/1, 1653089, ST/N005430/1, ST/K000845/1, ST/H002006/1, ST/N000080/1] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [15H02082] Funding Source: KAKEN
- Ministry of Science, ICT & Future Planning, Republic of Korea [A21400000] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0018156] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Direct For Education and Human Resources
- Division Of Human Resource Development [1242090] Funding Source: National Science Foundation
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- Division Of Astronomical Sciences [1516150, 1333129] Funding Source: National Science Foundation
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- Office of Advanced Cyberinfrastructure (OAC)
- Direct For Computer & Info Scie & Enginr [1541396, 1443047] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/N00003X/1, ST/I006269/1, ST/L000954/1, Gravitational Waves, ST/N000064/1, ST/L000326/1, PPA/G/S/2002/00652, ST/L000946/1, ST/K005014/1, ST/L003465/1, ST/N000633/1, ST/I006269/1 Gravitational Waves, ST/J000019/1, ST/N005716/1, ST/H002006/1, ST/J00166X/1, ST/N000080/1, ST/N005406/1, ST/M004090/1, ST/K000845/1, ST/I006242/1, ST/N000072/1, ST/I006285/1, ST/N005430/1] Funding Source: researchfish
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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 5 sigma. 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) x 10(-22). The inferred source-frame initial black hole masses are 14.2(-3.7)(+8.3) M-circle dot and 7.5(-2.3)(+2.3) M-circle dot, and the final black hole mass is 20.8(-1.7)(+6.1) M-circle dot. 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.
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