On May 21, 2019 the LIGO/Virgo interferometers detected GW190521, the most massive gravitational wave binary observed to date. The two component black holes had masses of about 85 and 66 solar masses, and resulted in the formation of a black hole remnant of 142 solar masses. This remnant provides the first clear detection of an intermediate-mass black-hole.
GW190521 observed by the H1 (left panel), L1 (middle panel) and V1 (right panel) detectors. Times are shown relative to May 21, 2019 at 03:02:29 UTC.
top row
Gray curves: the detector time series are filtered with a 16-512 Hz band-pass filter. Color curves: signal reconstruction by cWB. Visually, the cWB reconstruction is in agreement with the amplitudes of around GW190521 signal inside the detector noise.
bottom row
Time-frequency representations of data containing the GW190521 signal.
