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GW240104_164932 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240104_164932

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240104_164932

Both component-mass lower bounds exceed 3 solar masses

Primary mass42.3 M☉

Secondary mass32.2 M☉

ObservedJan 4, 2024

Event identity

Classification and release

ID: gwtc:GW240104_164932
Event name: GW240104_164932
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-4.1
Preferred event version: v2
Observed at: Thursday, January 4, 2024 at 4:49:32 PM UTC UTC
GPS time: 1,388,422,190.6

Source-frame posterior

Component and remnant masses

Primary mass: 42.3 (-6.8, +9.4) M☉
Secondary mass: 32.2 (-8.2, +7.5) M☉
Remnant mass: 70.7 (-8.1, +10.7) M☉
Effective spin: 0.09
Network SNR: 14.8

Propagation

Distance and statistical context

Luminosity distance: 1,910 (-970, +1,120) Mpc
Redshift: 0.35
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-4.1

GW240104_164932

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

JSON record GWOSC event page