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GW231206_233134 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW231206_233134

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW231206_233134

Both component-mass lower bounds exceed 3 solar masses

Primary mass35.6 M☉

Secondary mass28.2 M☉

ObservedDec 6, 2023

Event identity

Classification and release

ID: gwtc:GW231206_233134
Event name: GW231206_233134
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: Wednesday, December 6, 2023 at 11:31:34 PM UTC UTC
GPS time: 1,385,940,712.5

Source-frame posterior

Component and remnant masses

Primary mass: 35.6 (-6.2, +9) M☉
Secondary mass: 28.2 (-7.1, +7.6) M☉
Remnant mass: 60.6 (-8.3, +13) M☉
Effective spin: -0.08
Network SNR: 12.8

Propagation

Distance and statistical context

Luminosity distance: 3,200 (-1,800, +1,800) Mpc
Redshift: 0.54
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-4.1

GW231206_233134

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

JSON record GWOSC event page