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GW230806_204041 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230806_204041

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230806_204041

Both component-mass lower bounds exceed 3 solar masses

Primary mass51 M☉

Secondary mass35 M☉

ObservedAug 6, 2023

Event identity

Classification and release

ID: gwtc:GW230806_204041
Event name: GW230806_204041
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: Sunday, August 6, 2023 at 8:40:41 PM UTC UTC
GPS time: 1,375,389,659.9

Source-frame posterior

Component and remnant masses

Primary mass: 51 (-12, +18) M☉
Secondary mass: 35 (-13, +14) M☉
Remnant mass: 82 (-15, +23) M☉
Effective spin: 0.08
Network SNR: 9.4

Propagation

Distance and statistical context

Luminosity distance: 5,500 (-2,900, +3,700) Mpc
Redshift: 0.84
Astrophysical probability: 0.99
False-alarm rate: 0.0035

Provenance

Official source record

GWOSC · GWTC-4.1

GW230806_204041

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

JSON record GWOSC event page