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GW190725_174728 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190725_174728

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190725_174728

Both component-mass lower bounds exceed 3 solar masses

Primary mass11.8 M☉

Secondary mass6.3 M☉

ObservedJul 25, 2019

Event identity

Classification and release

ID: gwtc:GW190725_174728
Event name: GW190725_174728
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: Thursday, July 25, 2019 at 5:47:28 PM UTC UTC
GPS time: 1,248,112,066.4

Source-frame posterior

Component and remnant masses

Primary mass: 11.8 (-3, +10.1) M☉
Secondary mass: 6.3 (-2.5, +2.1) M☉
Remnant mass: 17.6 (-1.8, +7.7) M☉
Effective spin: -0.04
Network SNR: 9.1

Propagation

Distance and statistical context

Luminosity distance: 1,030 (-430, +520) Mpc
Redshift: 0.2
Astrophysical probability: 0.9602
False-alarm rate: 0.46

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190725_174728

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

JSON record GWOSC event page