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GW240824_205609 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240824_205609

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240824_205609

Both component-mass lower bounds exceed 3 solar masses

Primary mass70 M☉

Secondary mass37 M☉

ObservedAug 24, 2024

Event identity

Classification and release

ID: gwtc:GW240824_205609
Event name: GW240824_205609
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-5.0
Preferred event version: v1
Observed at: Saturday, August 24, 2024 at 8:56:09 PM UTC UTC
GPS time: 1,408,568,187.3

Source-frame posterior

Component and remnant masses

Primary mass: 70 (-24, +32) M☉
Secondary mass: 37 (-17, +20) M☉
Remnant mass: 103 (-26, +36) M☉
Effective spin: 0.08
Network SNR: 9

Propagation

Distance and statistical context

Luminosity distance: 5,300 (-3,000, +5,400) Mpc
Redshift: 0.81
Astrophysical probability: 0.96
False-alarm rate: 0.25

Provenance

Official source record

GWOSC · GWTC-5.0

GW240824_205609

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

JSON record GWOSC event page