Publication record · 18.cifr/2016.abbott.gw150914-matched-filter
18.cifr/2016.abbott.gw150914-matched-filterOn 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 1.0e-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.
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A larger event catalog is needed to constrain binary black hole population models and merger rates. Multi-messenger astronomy combining GW + EM observations is an immediate extension. Next-generation detectors (Einstein Telescope, Cosmic Explorer) will push sensitivity to cosmological distances.