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

LIGO Scientific and Virgo Collaboration

Research output: Contribution to journalArticleResearchpeer-review

1190 Citations (Scopus)

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+8.4M' 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.

Original languageEnglish
Article number221101
Number of pages17
JournalPhysical Review Letters
Volume118
Issue number22
DOIs
Publication statusPublished - 1 Jun 2017

Cite this

LIGO Scientific and Virgo Collaboration. / GW170104 : Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2. In: Physical Review Letters. 2017 ; Vol. 118, No. 22.
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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+8.4M' 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.",
author = "Ackley, {Kendall Danielle} and Lasky, {P D} and Y Levin and S Qiu and L Sammut and E Thrane and C Whittle and Xingjiang Zhu and {LIGO Scientific and Virgo Collaboration}",
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GW170104 : Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2. / LIGO Scientific and Virgo Collaboration.

In: Physical Review Letters, Vol. 118, No. 22, 221101, 01.06.2017.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Qiu, S

AU - Sammut, L

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AU - Whittle, C

AU - Zhu, Xingjiang

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