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GW241101_220523 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW241101_220523

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW241101_220523

Both component-mass lower bounds exceed 3 solar masses

Primary mass41 M☉

Secondary mass19.3 M☉

ObservedNov 1, 2024

Event identity

Classification and release

ID: gwtc:GW241101_220523
Event name: GW241101_220523
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: Friday, November 1, 2024 at 10:05:23 PM UTC UTC
GPS time: 1,414,533,941.1

Source-frame posterior

Component and remnant masses

Primary mass: 41 (-12, +13) M☉
Secondary mass: 19.3 (-5.7, +9.8) M☉
Remnant mass: 57.7 (-9, +11.9) M☉
Effective spin: 0.15
Network SNR: 10.6

Propagation

Distance and statistical context

Luminosity distance: 2,200 (-1,000, +1,400) Mpc
Redshift: 0.39
Astrophysical probability: 0.99
False-alarm rate: 0.0006

Provenance

Official source record

GWOSC · GWTC-5.0

GW241101_220523

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

JSON record GWOSC event page