Observation of gravitational waves from a binary black hole merger

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dc.contributor.author Sengupta, Anand
dc.date.accessioned 2016-02-16T14:18:16Z
dc.date.available 2016-02-16T14:18:16Z
dc.date.issued 2016-02
dc.identifier.citation Sengupta, Anand et al., “Observation of gravitational waves from a binary black hole merger”, Physical Review Letters, DOI: 10.1103/PhysRevLett.116.061102, vol. 116, no. 6, Feb. 2016. en_US
dc.identifier.issn 0031-9007
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevLett.116.061102
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2097
dc.description.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+160−180  Mpc corresponding to a redshift z=0.09+0.03−0.04. In the source frame, the initial black hole masses are 36+5−4M⊙ 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. en_US
dc.description.statementofresponsibility by Anand Sengupta et.al
dc.format.extent vol. 116, no. 6
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.subject Laser Interferometer en_US
dc.subject Gravitational-Wave Observatory en_US
dc.subject Binary Black Hole Merger en_US
dc.title Observation of gravitational waves from a binary black hole merger en_US
dc.type Article en_US
dc.relation.journal Physical Review Letters

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