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GW230707_124047 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230707_124047

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230707_124047

Both component-mass lower bounds exceed 3 solar masses

Primary mass46.1 M☉

Secondary mass36.3 M☉

ObservedJul 7, 2023

Event identity

Classification and release

ID: gwtc:GW230707_124047
Event name: GW230707_124047
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: Friday, July 7, 2023 at 12:40:47 PM UTC UTC
GPS time: 1,372,768,865.3

Source-frame posterior

Component and remnant masses

Primary mass: 46.1 (-8.3, +12.2) M☉
Secondary mass: 36.3 (-9.6, +10.6) M☉
Remnant mass: 78 (-11, +19) M☉
Effective spin: -0.05
Network SNR: 11.9

Propagation

Distance and statistical context

Luminosity distance: 4,400 (-2,300, +2,400) Mpc
Redshift: 0.71
Astrophysical probability: 0.99
False-alarm rate: 0.0004

Provenance

Official source record

GWOSC · GWTC-4.1

GW230707_124047

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

JSON record GWOSC event page