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GW240629_145256 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240629_145256

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240629_145256

Both component-mass lower bounds exceed 3 solar masses

Primary mass11.1 M☉

Secondary mass7.8 M☉

ObservedJun 29, 2024

Event identity

Classification and release

ID: gwtc:GW240629_145256
Event name: GW240629_145256
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: Saturday, June 29, 2024 at 2:52:56 PM UTC UTC
GPS time: 1,403,707,994.8

Source-frame posterior

Component and remnant masses

Primary mass: 11.1 (-1.7, +3) M☉
Secondary mass: 7.8 (-1.6, +1.4) M☉
Remnant mass: 18.1 (-1.1, +1.8) M☉
Effective spin: 0.04
Network SNR: 12.7

Propagation

Distance and statistical context

Luminosity distance: 1,280 (-500, +340) Mpc
Redshift: 0.25
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240629_145256

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

JSON record GWOSC event page