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GW230608_205047 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230608_205047

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230608_205047

Both component-mass lower bounds exceed 3 solar masses

Primary mass48 M☉

Secondary mass31 M☉

ObservedJun 8, 2023

Event identity

Classification and release

ID: gwtc:GW230608_205047
Event name: GW230608_205047
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, June 8, 2023 at 8:50:47 PM UTC UTC
GPS time: 1,370,292,665.2

Source-frame posterior

Component and remnant masses

Primary mass: 48 (-11, +13) M☉
Secondary mass: 31 (-10, +11) M☉
Remnant mass: 75 (-11, +15) M☉
Effective spin: 0.04
Network SNR: 10.2

Propagation

Distance and statistical context

Luminosity distance: 3,500 (-1,700, +2,200) Mpc
Redshift: 0.58
Astrophysical probability: 0.99
False-alarm rate: 0.0011

Provenance

Official source record

GWOSC · GWTC-4.1

GW230608_205047

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

JSON record GWOSC event page