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GW240511_031507 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240511_031507

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240511_031507

Both component-mass lower bounds exceed 3 solar masses

Primary mass40.5 M☉

Secondary mass32.2 M☉

ObservedMay 11, 2024

Event identity

Classification and release

ID: gwtc:GW240511_031507
Event name: GW240511_031507
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, May 11, 2024 at 3:15:08 AM UTC UTC
GPS time: 1,399,432,526

Source-frame posterior

Component and remnant masses

Primary mass: 40.5 (-5.1, +7.4) M☉
Secondary mass: 32.2 (-6.6, +5.5) M☉
Remnant mass: 69.1 (-5.5, +6.8) M☉
Effective spin: 0.05
Network SNR: 16.3

Propagation

Distance and statistical context

Luminosity distance: 1,990 (-760, +750) Mpc
Redshift: 0.36
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240511_031507

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

JSON record GWOSC event page