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GW240501_033534 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240501_033534

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240501_033534

Both component-mass lower bounds exceed 3 solar masses

Primary mass38.6 M☉

Secondary mass27.7 M☉

ObservedMay 1, 2024

Event identity

Classification and release

ID: gwtc:GW240501_033534
Event name: GW240501_033534
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: Wednesday, May 1, 2024 at 3:35:34 AM UTC UTC
GPS time: 1,398,569,752.9

Source-frame posterior

Component and remnant masses

Primary mass: 38.6 (-8, +11.6) M☉
Secondary mass: 27.7 (-8.2, +8.6) M☉
Remnant mass: 63.1 (-9.5, +13.4) M☉
Effective spin: 0.04
Network SNR: 10.6

Propagation

Distance and statistical context

Luminosity distance: 4,700 (-2,200, +2,700) Mpc
Redshift: 0.74
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240501_033534

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

JSON record GWOSC event page