GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
- LIGO Scientific and
- Virgo
16 pages
Published in:
- Phys.Rev.Lett. 119 (2017) 14, 141101
- Published: Oct 6, 2017
e-Print:
- 1709.09660 [gr-qc]
View in:
Citations per year
Abstract: (APS)
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 30.5-3.0+5.7M⊙ and 25.3-4.2+2.8M⊙ (at the 90% credible level). The luminosity distance of the source is 540-210+130 Mpc, corresponding to a redshift of z=0.11-0.04+0.03. 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.- gravitational radiation: polarization
- gravitational radiation
- gravitational radiation detector
- gravitational radiation: direct detection
- gravitational radiation: emission
- black hole: binary: coalescence
- black hole: mass
- detector: network
- LIGO
- localization
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