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GW250119_190238 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW250119_190238

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW250119_190238

Both component-mass lower bounds exceed 3 solar masses

Primary mass11.54 M☉

Secondary mass9.95 M☉

ObservedJan 19, 2025

Event identity

Classification and release

ID: gwtc:GW250119_190238
Event name: GW250119_190238
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-5.0
Preferred event version: v1
Observed at: Sunday, January 19, 2025 at 7:02:38 PM UTC UTC
GPS time: 1,421,348,576.3

Source-frame posterior

Component and remnant masses

Primary mass: 11.54 (-0.81, +1.95) M☉
Secondary mass: 9.95 (-1.56, +0.77) M☉
Remnant mass: 20.56 (-0.97, +0.57) M☉
Effective spin: 0.09
Network SNR: 21.3

Propagation

Distance and statistical context

Luminosity distance: 311 (-68, +289) Mpc
Redshift: 0.07
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW250119_190238

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

JSON record GWOSC event page