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GW170814: a three-detector observation of gravitational waves from a binary black hole coalescence

GW170814: a three-detector observation of gravitational waves from a binary black hole coalescence
GW170814: a three-detector observation of gravitational waves from a binary black hole coalescence
On August 14, 2017 at 10∶30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coalescence of two stellar mass black holes, with a false-alarm rate of ≲1 in 27 000 years. The signal was observed with a three-detector network matched-filter signal-to-noise ratio of 18. The inferred masses of the initial black holes are 30.5+5.7−3.0M⊙ and 25.3+2.8−4.2M⊙ (at the 90% credible level). The luminosity distance of the source is 540+130−210  Mpc, corresponding to a redshift of z=0.11+0.03−0.04. A network of three detectors improves the sky localization of the source, reducing the area of the 90% credible region from 1160   deg2 using only the two LIGO detectors to 60  deg2 using all three detectors. For the first time, we can test the nature of gravitational-wave polarizations from the antenna response of the LIGO-Virgo network, thus enabling a new class of phenomenological tests of gravity.
1079-7114
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
The LIGO Scientific Collaboration and the Virgo Collaboration
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160

Abbott, B.P. and Jones, David , The LIGO Scientific Collaboration and the Virgo Collaboration (2017) GW170814: a three-detector observation of gravitational waves from a binary black hole coalescence. Physical Review Letters, 119 (14). (doi:10.1103/PhysRevLett.119.141101).

Record type: Article

Abstract

On August 14, 2017 at 10∶30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coalescence of two stellar mass black holes, with a false-alarm rate of ≲1 in 27 000 years. The signal was observed with a three-detector network matched-filter signal-to-noise ratio of 18. The inferred masses of the initial black holes are 30.5+5.7−3.0M⊙ and 25.3+2.8−4.2M⊙ (at the 90% credible level). The luminosity distance of the source is 540+130−210  Mpc, corresponding to a redshift of z=0.11+0.03−0.04. A network of three detectors improves the sky localization of the source, reducing the area of the 90% credible region from 1160   deg2 using only the two LIGO detectors to 60  deg2 using all three detectors. For the first time, we can test the nature of gravitational-wave polarizations from the antenna response of the LIGO-Virgo network, thus enabling a new class of phenomenological tests of gravity.

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More information

Accepted/In Press date: 25 September 2017
e-pub ahead of print date: 6 October 2017
Published date: 6 October 2017

Identifiers

Local EPrints ID: 416951
URI: https://eprints.soton.ac.uk/id/eprint/416951
ISSN: 1079-7114
PURE UUID: 7fbb4f01-26c8-4171-9e9a-6d5b94db4a8f

Catalogue record

Date deposited: 15 Jan 2018 17:30
Last modified: 19 Feb 2019 17:31

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