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GW241111_111552 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW241111_111552

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW241111_111552

Both component-mass lower bounds exceed 3 solar masses

Primary mass25.3 M☉

Secondary mass20.5 M☉

ObservedNov 11, 2024

Event identity

Classification and release

ID: gwtc:GW241111_111552
Event name: GW241111_111552
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: Monday, November 11, 2024 at 11:15:52 AM UTC UTC
GPS time: 1,415,358,970.6

Source-frame posterior

Component and remnant masses

Primary mass: 25.3 (-3.3, +4.4) M☉
Secondary mass: 20.5 (-4.2, +3.9) M☉
Remnant mass: 43.2 (-3.4, +5.4) M☉
Effective spin: 0.1
Network SNR: 16.3

Propagation

Distance and statistical context

Luminosity distance: 1,550 (-740, +580) Mpc
Redshift: 0.29
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW241111_111552

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

JSON record GWOSC event page