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Black Holes/Gravitational-wave mergers/GW170608

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW170608

Both component-mass lower bounds exceed 3 solar masses

Primary mass10.6 M☉

Secondary mass7.8 M☉

ObservedJun 8, 2017

Event identity

Classification and release

ID: gwtc:GW170608
Event name: GW170608
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-2.1-confident
Preferred event version: v4
Observed at: Thursday, June 8, 2017 at 2:01:16 AM UTC UTC
GPS time: 1,180,922,494.5

Source-frame posterior

Component and remnant masses

Primary mass: 10.6 (-1.4, +4) M☉
Secondary mass: 7.8 (-1.9, +1.2) M☉
Remnant mass: 17.7 (-0.6, +2.1) M☉
Effective spin: 0.05
Network SNR: 15.3

Propagation

Distance and statistical context

Luminosity distance: 340 (-130, +120) Mpc
Redshift: 0.07
Astrophysical probability: Not reported by GWOSC
False-alarm rate: Not reported by GWOSC

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW170608

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

JSON record GWOSC event page

GW170608 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda