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GW190426_190642 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190426_190642

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190426_190642

Both component-mass lower bounds exceed 3 solar masses

Primary mass105.5 M☉

Secondary mass76 M☉

ObservedApr 26, 2019

Event identity

Classification and release

ID: gwtc:GW190426_190642
Event name: GW190426_190642
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: v1
Observed at: Friday, April 26, 2019 at 7:06:42 PM UTC UTC
GPS time: 1,240,340,820.6

Source-frame posterior

Component and remnant masses

Primary mass: 105.5 (-24.1, +45.3) M☉
Secondary mass: 76 (-36.5, +26.2) M☉
Remnant mass: 172.9 (-33.6, +37.7) M☉
Effective spin: 0.23
Network SNR: 8.7

Propagation

Distance and statistical context

Luminosity distance: 4,580 (-2,280, +3,400) Mpc
Redshift: 0.73
Astrophysical probability: 0.7505
False-alarm rate: 4.1

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190426_190642

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

JSON record GWOSC event page