GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2

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Abbott, B.P.; Abbott, R.; Abbott, T.D.; Acernese, F.; Ackley, K.; et, al. (LIGO Scientific Collaboration and Virgo Collaboration): GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2. In: Physical Review Letters 118 (2017), Nr. 22, 221101. DOI:

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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+8.4M' and 19.4-5.9+5.3M (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, χeff=-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 mg≤7.7×10-23 eV/c2. In all cases, we find that GW170104 is consistent with general relativity. © 2017 American Physical Society.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Mathematik und Physik

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2 image of flag of United States United States 3 2.56%
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4 image of flag of United Kingdom United Kingdom 2 1.71%
5 image of flag of Korea, Republic of Korea, Republic of 1 0.85%
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10 image of flag of Brazil Brazil 1 0.85%
    other countries 3 2.56%

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