Observation of Gravitational Waves from a Binary Black Hole Merger

  title={Observation of Gravitational Waves from a Binary Black Hole Merger},
  author={The Ligo Scientific Collaboration and The Virgo Collaboration},
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… 

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