Observation of gravitational waves from a binary black hole merger

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Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abernathy, M.R.; Acernese, F.; et, al. (LIGO Scientific Collaboration and Virgo Collaboration): Observation of gravitational waves from a binary black hole merger. In: Physical Review Letters 116 (2016), Nr. 6, 61102. DOI: https://doi.org/10.1103/PhysRevLett.116.061102

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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.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
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1 image of flag of Germany Germany 132 84.62%
2 image of flag of Czech Republic Czech Republic 6 3.85%
3 image of flag of Brazil Brazil 4 2.56%
4 image of flag of United States United States 2 1.28%
5 image of flag of Poland Poland 2 1.28%
6 image of flag of United Kingdom United Kingdom 2 1.28%
7 image of flag of Canada Canada 2 1.28%
8 image of flag of Sweden Sweden 1 0.64%
9 image of flag of Indonesia Indonesia 1 0.64%
10 image of flag of Egypt Egypt 1 0.64%
    other countries 3 1.92%

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