Acquiring mission data

Apex Andromeda · GWOSC population

Gravitational-wave mergers

Confident GWTC events with at least one mass-qualified black-hole component. Detection confidence and component classification remain separate claims.

Matching events: 279
Authority: GWOSC
Catalog: GWTC
Refresh cadence: 24 hours

Population boundary:

Both lower mass bounds above 3 M☉ classify a binary-black-hole event. A secondary interval below 3 M☉ classifies a black-hole–neutron-star event; intervals crossing the boundary remain candidates. Binary-neutron-star-only events are excluded.

Separate event population

Search 279 matching mergers

Preferred cumulative GWTC releases are refreshed from the official GWOSC event API.

ConfirmedBinary Black Hole

GW230729_082317

Observed Jul 29, 2023, 8:23 AM UTC

Primary: 12.3 M☉
Secondary: 7.6 M☉
Remnant: 19.3 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230726_002940

Observed Jul 26, 2023, 12:29 AM UTC

Primary: 35.6 M☉
Secondary: 27.9 M☉
Remnant: 60.6 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230723_101834

Observed Jul 23, 2023, 10:18 AM UTC

Primary: 16.6 M☉
Secondary: 10.6 M☉
Remnant: 26.4 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230712_090405

Observed Jul 12, 2023, 9:04 AM UTC

Primary: 32 M☉
Secondary: 12.5 M☉
Remnant: 44 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230709_122727

Observed Jul 9, 2023, 12:27 PM UTC

Primary: 45 M☉
Secondary: 30 M☉
Remnant: 71 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230708_230935

Observed Jul 8, 2023, 11:09 PM UTC

Primary: 64 M☉
Secondary: 40 M☉
Remnant: 99 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230708_053705

Observed Jul 8, 2023, 5:37 AM UTC

Primary: 29.1 M☉
Secondary: 22.7 M☉
Remnant: 49.4 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230707_124047

Observed Jul 7, 2023, 12:40 PM UTC

Primary: 46.1 M☉
Secondary: 36.3 M☉
Remnant: 78 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230706_104333

Observed Jul 6, 2023, 10:43 AM UTC

Primary: 16.3 M☉
Secondary: 11.5 M☉
Remnant: 26.6 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230704_212616

Observed Jul 4, 2023, 9:26 PM UTC

Primary: 89 M☉
Secondary: 50 M☉
Remnant: 132 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230704_021211

Observed Jul 4, 2023, 2:12 AM UTC

Primary: 32.6 M☉
Secondary: 20 M☉
Remnant: 50.7 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230702_185453

Observed Jul 2, 2023, 6:54 PM UTC

Primary: 40 M☉
Secondary: 18 M☉
Remnant: 57 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230630_234532

Observed Jun 30, 2023, 11:45 PM UTC

Primary: 10 M☉
Secondary: 6.6 M☉
Remnant: 16.1 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230630_125806

Observed Jun 30, 2023, 12:58 PM UTC

Primary: 51 M☉
Secondary: 33 M☉
Remnant: 80 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230628_231200

Observed Jun 28, 2023, 11:12 PM UTC

Primary: 32.5 M☉
Secondary: 27 M☉
Remnant: 56.4 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230627_015337

Observed Jun 27, 2023, 1:53 AM UTC

Primary: 8.4 M☉
Secondary: 5.74 M☉
Remnant: 13.57 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230624_113103

Observed Jun 24, 2023, 11:31 AM UTC

Primary: 27.1 M☉
Secondary: 16.1 M☉
Remnant: 41.7 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230609_064958

Observed Jun 9, 2023, 6:49 AM UTC

Primary: 35.4 M☉
Secondary: 25.2 M☉
Remnant: 58 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230608_205047

Observed Jun 8, 2023, 8:50 PM UTC

Primary: 48 M☉
Secondary: 31 M☉
Remnant: 75 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230606_004305

Observed Jun 6, 2023, 12:43 AM UTC

Primary: 37.6 M☉
Secondary: 25.7 M☉
Remnant: 60.8 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230605_065343

Observed Jun 5, 2023, 6:53 AM UTC

Primary: 17.4 M☉
Secondary: 11 M☉
Remnant: 27.3 M☉
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW230601_224134

Observed Jun 1, 2023, 10:41 PM UTC

Primary: 64 M☉
Secondary: 44 M☉
Remnant: 102 M☉
Release: GWTC-4.1

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ConfirmedBlack Hole Neutron Star

GW230518_125908

Observed May 18, 2023, 12:59 PM UTC

Primary: 8.17 M☉
Secondary: 1.45 M☉
Remnant: Not reported
Release: GWTC-4.1

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ConfirmedBinary Black Hole

GW200322_091133

Observed Mar 22, 2020, 9:11 AM UTC

Primary: 38 M☉
Secondary: 11.3 M☉
Remnant: 48 M☉
Release: GWTC-3-confident

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