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GW190517_055101 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190517_055101

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190517_055101

Both component-mass lower bounds exceed 3 solar masses

Primary mass39.2 M☉

Secondary mass24 M☉

ObservedMay 17, 2019

Event identity

Classification and release

ID: gwtc:GW190517_055101
Event name: GW190517_055101
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: v2
Observed at: Friday, May 17, 2019 at 5:51:01 AM UTC UTC
GPS time: 1,242,107,479.8

Source-frame posterior

Component and remnant masses

Primary mass: 39.2 (-9.2, +13.9) M☉
Secondary mass: 24 (-7.9, +7.4) M☉
Remnant mass: 60.1 (-9.4, +9.9) M☉
Effective spin: 0.49
Network SNR: 10.8

Propagation

Distance and statistical context

Luminosity distance: 1,790 (-880, +1,750) Mpc
Redshift: 0.33
Astrophysical probability: 1
False-alarm rate: 0.0004

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190517_055101

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

JSON record GWOSC event page