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GW190805_211137 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190805_211137

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190805_211137

Both component-mass lower bounds exceed 3 solar masses

Primary mass46.2 M☉

Secondary mass30.6 M☉

ObservedAug 5, 2019

Event identity

Classification and release

ID: gwtc:GW190805_211137
Event name: GW190805_211137
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: v1
Observed at: Monday, August 5, 2019 at 9:11:37 PM UTC UTC
GPS time: 1,249,074,715.3

Source-frame posterior

Component and remnant masses

Primary mass: 46.2 (-11.2, +15.4) M☉
Secondary mass: 30.6 (-11.3, +11.8) M☉
Remnant mass: 72.4 (-13.2, +18.2) M☉
Effective spin: 0.37
Network SNR: 8.1

Propagation

Distance and statistical context

Luminosity distance: 6,130 (-3,080, +3,720) Mpc
Redshift: 0.92
Astrophysical probability: 0.9537
False-alarm rate: 0.63

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190805_211137

Last synchronized 9/12/2026, 1:40:20 AM UTC.

JSON record GWOSC event page