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GW230605_065343 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230605_065343

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230605_065343

Both component-mass lower bounds exceed 3 solar masses

Primary mass17.4 M☉

Secondary mass11 M☉

ObservedJun 5, 2023

Event identity

Classification and release

ID: gwtc:GW230605_065343
Event name: GW230605_065343
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: Monday, June 5, 2023 at 6:53:43 AM UTC UTC
GPS time: 1,369,983,241.5

Source-frame posterior

Component and remnant masses

Primary mass: 17.4 (-3.6, +6.6) M☉
Secondary mass: 11 (-2.7, +2.5) M☉
Remnant mass: 27.3 (-2.8, +4.2) M☉
Effective spin: 0.06
Network SNR: 11.4

Propagation

Distance and statistical context

Luminosity distance: 1,060 (-480, +610) Mpc
Redshift: 0.21
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-4.1

GW230605_065343

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

JSON record GWOSC event page