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GW190519_153544 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190519_153544

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190519_153544

Both component-mass lower bounds exceed 3 solar masses

Primary mass65.1 M☉

Secondary mass40.8 M☉

ObservedMay 19, 2019

Event identity

Classification and release

ID: gwtc:GW190519_153544
Event name: GW190519_153544
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: Sunday, May 19, 2019 at 3:35:44 PM UTC UTC
GPS time: 1,242,315,362.3

Source-frame posterior

Component and remnant masses

Primary mass: 65.1 (-11, +10.8) M☉
Secondary mass: 40.8 (-12.7, +11.5) M☉
Remnant mass: 100 (-12.9, +13) M☉
Effective spin: 0.33
Network SNR: 15.9

Propagation

Distance and statistical context

Luminosity distance: 2,600 (-960, +1,720) Mpc
Redshift: 0.45
Astrophysical probability: 1
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190519_153544

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

JSON record GWOSC event page