LIGO Document P170608-v12
- On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave signal from the merger of two stellar-mass black holes was observed by the two Advanced LIGO detectors with a network signal-to-noise ratio of 13. This system is the lighest black hole binary so far observed, with component masses 12+7
−2 M☉ and 7+2
−2 M☉ (90% credible intervals). These lie in the range of measured black hole masses in low-mass X-ray binaries, thus allowing us to compare black holes detected through gravitational waves with electromagnetic observations. The source's luminosity distance is 340+140
−140 M☉ Mpc, corresponding to redshift 0.07+0.03
−0.03 M☉. We verify that the signal waveform is consistent with the predictions of general relativity.
- Published in ApJ Letters vol. 851 pg. L35.
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