GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
Name
PhysRevLett.119.141101.pdf
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1.36 MB
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Author(s)
Abbott, B. P.
Abbott, R.
Abbott, T. D.
Acernese, F.
Ackley, K.
Adams, C.
Adams, T.
Addesso, P.
Adhikari, R. X.
Adya, V. B.
Date Issued
October 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Abbott, B. P. et al. "GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence." Physical Review Letters 119, 14 (October 2017): 141101
Version
Final published version
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[subscript -3.0][superscript +5.7]M[subscript ⊙] and 25.3[subscript -4.2][superscript +2.8]M[subscript ⊙] (at the 90% credible level). The luminosity distance of the source is 540[subscript -210][superscript +130] Mpc, corresponding to a redshift of z=0.11[subscript -0.04][superscripts +0.03]. A network of three detectors improves the sky localization of the source, reducing the area of the 90% credible region from 1160 deg[superscript 2] using only the two LIGO detectors to 60 deg[superscript 2] 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.119.141101
