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GW230627_015337 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230627_015337

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230627_015337

Both component-mass lower bounds exceed 3 solar masses

Primary mass8.4 M☉

Secondary mass5.74 M☉

ObservedJun 27, 2023

Event identity

Classification and release

ID: gwtc:GW230627_015337
Event name: GW230627_015337
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-4.1
Preferred event version: v2
Observed at: Tuesday, June 27, 2023 at 1:53:37 AM UTC UTC
GPS time: 1,371,866,035.8

Source-frame posterior

Component and remnant masses

Primary mass: 8.4 (-1.3, +1.7) M☉
Secondary mass: 5.74 (-0.92, +0.99) M☉
Remnant mass: 13.57 (-0.48, +0.83) M☉
Effective spin: 0.02
Network SNR: 28.7

Propagation

Distance and statistical context

Luminosity distance: 305 (-139, +65) Mpc
Redshift: 0.07
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-4.1

GW230627_015337

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

JSON record GWOSC event page