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GW241009_022835 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW241009_022835

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW241009_022835

Both component-mass lower bounds exceed 3 solar masses

Primary mass37.1 M☉

Secondary mass26.8 M☉

ObservedOct 9, 2024

Event identity

Classification and release

ID: gwtc:GW241009_022835
Event name: GW241009_022835
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, October 9, 2024 at 2:28:35 AM UTC UTC
GPS time: 1,412,476,133.7

Source-frame posterior

Component and remnant masses

Primary mass: 37.1 (-8.9, +14.1) M☉
Secondary mass: 26.8 (-9.5, +10.2) M☉
Remnant mass: 61 (-12, +18) M☉
Effective spin: 0.09
Network SNR: 8.4

Propagation

Distance and statistical context

Luminosity distance: 5,600 (-2,800, +3,800) Mpc
Redshift: 0.85
Astrophysical probability: 0.99
False-alarm rate: 0.97

Provenance

Official source record

GWOSC · GWTC-5.0

GW241009_022835

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

JSON record GWOSC event page