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GW240916_184352 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240916_184352

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240916_184352

Both component-mass lower bounds exceed 3 solar masses

Primary mass10.7 M☉

Secondary mass7.8 M☉

ObservedSep 16, 2024

Event identity

Classification and release

ID: gwtc:GW240916_184352
Event name: GW240916_184352
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: Monday, September 16, 2024 at 6:43:52 PM UTC UTC
GPS time: 1,410,547,450.3

Source-frame posterior

Component and remnant masses

Primary mass: 10.7 (-1.7, +4.2) M☉
Secondary mass: 7.8 (-2.2, +1.5) M☉
Remnant mass: 17.8 (-1.6, +2.5) M☉
Effective spin: 0.05
Network SNR: 9.8

Propagation

Distance and statistical context

Luminosity distance: 1,280 (-640, +630) Mpc
Redshift: 0.25
Astrophysical probability: 0.99
False-alarm rate: 0.028

Provenance

Official source record

GWOSC · GWTC-5.0

GW240916_184352

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

JSON record GWOSC event page