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GW190929_012149 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190929_012149

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190929_012149

Both component-mass lower bounds exceed 3 solar masses

Primary mass66.3 M☉

Secondary mass26.8 M☉

ObservedSep 29, 2019

Event identity

Classification and release

ID: gwtc:GW190929_012149
Event name: GW190929_012149
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-2.1-confident
Preferred event version: v2
Observed at: Sunday, September 29, 2019 at 1:21:49 AM UTC UTC
GPS time: 1,253,755,327.4

Source-frame posterior

Component and remnant masses

Primary mass: 66.3 (-16.6, +21.6) M☉
Secondary mass: 26.8 (-10.6, +14.7) M☉
Remnant mass: 90.3 (-14.6, +22.3) M☉
Effective spin: -0.03
Network SNR: 9.7

Propagation

Distance and statistical context

Luminosity distance: 3,130 (-1,370, +2,510) Mpc
Redshift: 0.53
Astrophysical probability: 0.8704
False-alarm rate: 0.16

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190929_012149

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

JSON record GWOSC event page