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GW231119_075248 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW231119_075248

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW231119_075248

Both component-mass lower bounds exceed 3 solar masses

Primary mass49 M☉

Secondary mass33 M☉

ObservedNov 19, 2023

Event identity

Classification and release

ID: gwtc:GW231119_075248
Event name: GW231119_075248
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-4.1
Preferred event version: v2
Observed at: Sunday, November 19, 2023 at 7:52:48 AM UTC UTC
GPS time: 1,384,415,586.1

Source-frame posterior

Component and remnant masses

Primary mass: 49 (-13, +22) M☉
Secondary mass: 33 (-13, +15) M☉
Remnant mass: 79 (-18, +27) M☉
Effective spin: Not reported by GWOSC
Network SNR: 8.3

Propagation

Distance and statistical context

Luminosity distance: 6,700 (-3,700, +5,300) Mpc
Redshift: 0.99
Astrophysical probability: 0.99
False-alarm rate: 0.0029

Provenance

Official source record

GWOSC · GWTC-4.1

GW231119_075248

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

JSON record GWOSC event page