Observation of gravitational waves from a binary black hole merger

LIGO Scientific Collaboration and Virgo Collaboration

Research output: Contribution to journalArticle

3922 Citations (Scopus)

Abstract

On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from 35 to 250 Hz with a peak gravitational-wave strain of 1.0×10-21. It matches the waveform predicted by general relativity for the inspiral and merger of a pair of black holes and the ringdown of the resulting single black hole. The signal was observed with a matched-filter signal-to-noise ratio of 24 and a false alarm rate estimated to be less than 1 event per 203 000 years, equivalent to a significance greater than 5.1σ. The source lies at a luminosity distance of 410-180+160 Mpc corresponding to a redshift z=0.09-0.04+0.03. In the source frame, the initial black hole masses are 36-4+5M⊙ and 29-4+4M⊙, and the final black hole mass is 62-4+4M⊙, with 3.0-0.5+0.5M⊙c2 radiated in gravitational waves. All uncertainties define 90% credible intervals. These observations demonstrate the existence of binary stellar-mass black hole systems. This is the first direct detection of gravitational waves and the first observation of a binary black hole merger.

Original languageEnglish (US)
Article number061102
JournalPhysical Review Letters
Volume116
Issue number6
DOIs
StatePublished - Feb 11 2016

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gravitational waves
LIGO (observatory)
matched filters
false alarms
stellar mass
relativity
waveforms
signal to noise ratios
luminosity
intervals
detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Observation of gravitational waves from a binary black hole merger. / LIGO Scientific Collaboration and Virgo Collaboration.

In: Physical Review Letters, Vol. 116, No. 6, 061102, 11.02.2016.

Research output: Contribution to journalArticle

LIGO Scientific Collaboration and Virgo Collaboration 2016, 'Observation of gravitational waves from a binary black hole merger', Physical Review Letters, vol. 116, no. 6, 061102. https://doi.org/10.1103/PhysRevLett.116.061102
LIGO Scientific Collaboration and Virgo Collaboration. / Observation of gravitational waves from a binary black hole merger. In: Physical Review Letters. 2016 ; Vol. 116, No. 6.
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