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GW240512_024139 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240512_024139

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240512_024139

Both component-mass lower bounds exceed 3 solar masses

Primary mass12.6 M☉

Secondary mass8 M☉

ObservedMay 12, 2024

Event identity

Classification and release

ID: gwtc:GW240512_024139
Event name: GW240512_024139
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, May 12, 2024 at 2:41:39 AM UTC UTC
GPS time: 1,399,516,917.1

Source-frame posterior

Component and remnant masses

Primary mass: 12.6 (-2.5, +4.8) M☉
Secondary mass: 8 (-2.1, +1.8) M☉
Remnant mass: 19.7 (-1.5, +3) M☉
Effective spin: 0.14
Network SNR: 11.6

Propagation

Distance and statistical context

Luminosity distance: 1,170 (-490, +340) Mpc
Redshift: 0.23
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240512_024139

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

JSON record GWOSC event page