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GW170814
H
V
BBH
V1 V1
8h
6h
4h
2h
0h
30°
0°
-30°
Premerger
Merger
Postmerger
3 suns
GW energy
53suns
31suns
25suns
V
H
L
A third detector allows us to be about 10 times more precise about where the event originated in the sky.
GW170814 is the first Gravitational Wave event which was detected by three interferometers: the Advanced LIGO detectors in the USA, and Advanced Virgo in Italy.
14 August 2017
Discovered
1.8 Billion light years
Distance
CascinaItaly Hanford, WashingtonUSA Livingston, LouisianaUSA Binary Black Hole Merger
LIGO
LIGO + VIRGO