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GW230706_104333 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230706_104333

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230706_104333

Both component-mass lower bounds exceed 3 solar masses

Primary mass16.3 M☉

Secondary mass11.5 M☉

ObservedJul 6, 2023

Event identity

Classification and release

ID: gwtc:GW230706_104333
Event name: GW230706_104333
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-4.1
Preferred event version: v2
Observed at: Thursday, July 6, 2023 at 10:43:33 AM UTC UTC
GPS time: 1,372,675,431.2

Source-frame posterior

Component and remnant masses

Primary mass: 16.3 (-3, +5.3) M☉
Secondary mass: 11.5 (-2.7, +2.6) M☉
Remnant mass: 26.6 (-2.8, +4.1) M☉
Effective spin: 0.19
Network SNR: 9.2

Propagation

Distance and statistical context

Luminosity distance: 1,910 (-970, +930) Mpc
Redshift: 0.35
Astrophysical probability: 0.99
False-alarm rate: 0.22

Provenance

Official source record

GWOSC · GWTC-4.1

GW230706_104333

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

JSON record GWOSC event page