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GW240426_031451 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240426_031451

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240426_031451

Both component-mass lower bounds exceed 3 solar masses

Primary mass52 M☉

Secondary mass36 M☉

ObservedApr 26, 2024

Event identity

Classification and release

ID: gwtc:GW240426_031451
Event name: GW240426_031451
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: Friday, April 26, 2024 at 3:14:52 AM UTC UTC
GPS time: 1,398,136,510

Source-frame posterior

Component and remnant masses

Primary mass: 52 (-11, +14) M☉
Secondary mass: 36 (-12, +11) M☉
Remnant mass: 84 (-13, +17) M☉
Effective spin: -0.05
Network SNR: 10.3

Propagation

Distance and statistical context

Luminosity distance: 4,000 (-2,000, +2,600) Mpc
Redshift: 0.65
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240426_031451

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

JSON record GWOSC event page