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GW191109_010717 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW191109_010717

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW191109_010717

Both component-mass lower bounds exceed 3 solar masses

Primary mass65 M☉

Secondary mass47 M☉

ObservedNov 9, 2019

Event identity

Classification and release

ID: gwtc:GW191109_010717
Event name: GW191109_010717
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-3-confident
Preferred event version: v1
Observed at: Saturday, November 9, 2019 at 1:07:17 AM UTC UTC
GPS time: 1,257,296,855.2

Source-frame posterior

Component and remnant masses

Primary mass: 65 (-11, +11) M☉
Secondary mass: 47 (-13, +15) M☉
Remnant mass: 107 (-15, +18) M☉
Effective spin: -0.29
Network SNR: 17.3

Propagation

Distance and statistical context

Luminosity distance: 1,290 (-650, +1,130) Mpc
Redshift: 0.25
Astrophysical probability: 0.99
False-alarm rate: 0.0002

Provenance

Official source record

GWOSC · GWTC-3-confident

GW191109_010717

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

JSON record GWOSC event page