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GW190720_000836 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190720_000836

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190720_000836

Both component-mass lower bounds exceed 3 solar masses

Primary mass14.2 M☉

Secondary mass7.5 M☉

ObservedJul 20, 2019

Event identity

Classification and release

ID: gwtc:GW190720_000836
Event name: GW190720_000836
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-2.1-confident
Preferred event version: v2
Observed at: Saturday, July 20, 2019 at 12:08:36 AM UTC UTC
GPS time: 1,247,616,534.7

Source-frame posterior

Component and remnant masses

Primary mass: 14.2 (-3.3, +5.6) M☉
Secondary mass: 7.5 (-1.8, +2.2) M☉
Remnant mass: 20.8 (-2, +3.9) M☉
Effective spin: 0.19
Network SNR: 10.9

Propagation

Distance and statistical context

Luminosity distance: 770 (-260, +650) Mpc
Redshift: 0.16
Astrophysical probability: 1
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190720_000836

Last synchronized 9/12/2026, 3:20:17 AM UTC.

JSON record GWOSC event page