GWTC-4.0
Confident events from the O4a observing run for LIGO and Virgo, as described in the GWTC-4.0 catalog paper. For details of all events in the cumulative GWTC-4.0 catalog, see GWTC catalog. These candidate events have a probability of astrophysical origin (probability of being a gravitational-wave signal versus being instrumental noise) assuming a compact binary (such as a binary black hole, neutron star-black hole binary or binary neutron star) coalescence source of greater than 0.5 or a false alarm rate of less than 1 per year based upon results of at least one of the search pipelines. Details and additional data products are linked from the documentation page.
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List contains 129 events.
| Name | Version | Release | GPS | Mass 1 (M☉) | Mass 2 (M☉) | Network SNR | Distance (Mpc) | χeff | Total Mass (M☉) | Chirp Mass (M☉) | Detector Frame Chirp Mass (M☉) | Redshift | False Alarm Rate (yr-1) | Pastro | Final Mass (M☉) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GW231002_143916 | v1 | GWTC-4.0 | 1380292774.7 | -- | -- | 9.4 | -- | -- | -- | -- | -- | -- | 1.0 | 0.90 | -- |
| GW231001_140220 | v1 | GWTC-4.0 | 1380204158.7 | 77 +24 -22 | 40 +17 -14 | 11.5 | 4200 +3600 -2200 | -0.05 +0.30 -0.35 | 117 +31 -22 | 46.9 +13.6 -9.4 | -- | 0.67 +0.44 -0.32 | 0.000016 | ≥ 0.99 | 112 +29 -21 |
| GW230930_110730 | v1 | GWTC-4.0 | 1380107268.4 | 34.1 +12.0 -7.4 | 24.6 +8.0 -7.1 | 9.0 | 4900 +3000 -2400 | 0.02 +0.25 -0.26 | 58.9 +14.4 -9.6 | 24.9 +6.2 -4.0 | -- | 0.76 +0.36 -0.33 | 0.17 | ≥ 0.99 | 56.2 +13.6 -9.2 |
| GW230928_215827 | v1 | GWTC-4.0 | 1379973525.1 | 55 +17 -15 | 30 +13 -11 | 10.5 | 4700 +3800 -2300 | 0.42 +0.18 -0.24 | 85 +21 -17 | 34.6 +9.2 -7.6 | -- | 0.75 +0.46 -0.31 | 0.000015 | ≥ 0.99 | 80 +19 -17 |
| GW230927_153832 | v1 | GWTC-4.0 | 1379864330.9 | 21.9 +3.6 -2.9 | 16.6 +2.5 -2.5 | 20.3 | 1150 +390 -510 | 0.03 +0.07 -0.08 | 38.4 +3.2 -2.2 | 16.44 +1.39 -0.84 | -- | 0.23 +0.07 -0.09 | ≤ 0.000010 | ≥ 0.99 | 36.6 +3.0 -2.1 |
| GW230927_043729 | v1 | GWTC-4.0 | 1379824667.1 | 34.9 +8.2 -5.9 | 27.4 +7.1 -6.5 | 12.1 | 3200 +1700 -1700 | -- | 62.1 +12.2 -7.9 | 26.6 +5.4 -3.5 | -- | 0.54 +0.23 -0.25 | ≤ 0.000010 | ≥ 0.99 | 59.2 +11.5 -7.5 |
| GW230925_143957 | v1 | GWTC-4.0 | 1379688015.5 | -- | -- | 8.0 | -- | -- | -- | -- | -- | -- | 8.2 | 0.55 | -- |
| GW230924_124453 | v1 | GWTC-4.0 | 1379594711.8 | 28.7 +5.6 -3.8 | 23.2 +4.3 -4.2 | 13.5 | 2360 +970 -990 | 0.02 +0.17 -0.17 | 51.8 +6.8 -4.7 | 22.3 +3.0 -2.0 | -- | 0.42 +0.14 -0.16 | ≤ 0.000010 | ≥ 0.99 | 49.3 +6.4 -4.4 |
| GW230922_040658 | v1 | GWTC-4.0 | 1379390836.1 | 76 +28 -18 | 51 +22 -25 | 12.5 | 6400 +4100 -3400 | 0.33 +0.24 -0.30 | 125 +36 -21 | 52 +17 -12 | -- | 0.96 +0.47 -0.44 | ≤ 0.000010 | ≥ 0.99 | 119 +34 -20 |
| GW230922_020344 | v1 | GWTC-4.0 | 1379383442.9 | 39.8 +9.9 -6.5 | 29.3 +5.5 -6.0 | 13.4 | 1550 +720 -700 | 0.02 +0.19 -0.20 | 69.2 +8.8 -6.5 | 29.5 +3.6 -2.6 | -- | 0.29 +0.11 -0.12 | ≤ 0.000010 | ≥ 0.99 | 66.0 +8.3 -6.1 |
| GW230920_071124 | v1 | GWTC-4.0 | 1379229102.7 | 32.5 +8.4 -6.0 | 24.2 +6.4 -6.8 | 11.1 | 2800 +1700 -1300 | -- | 56.8 +9.9 -8.0 | 24.1 +4.5 -3.5 | -- | 0.48 +0.24 -0.20 | ≤ 0.000010 | ≥ 0.99 | 54.2 +9.2 -7.5 |
| GW230920_064709 | v1 | GWTC-4.0 | 1379227647.3 | -- | -- | 9.5 | -- | -- | -- | -- | -- | -- | 4.8 | 0.81 | -- |
| GW230919_215712 | v1 | GWTC-4.0 | 1379195850.0 | 27.5 +5.2 -3.5 | 21.7 +3.4 -4.2 | 16.8 | 1280 +730 -480 | 0.18 +0.12 -0.12 | 49.4 +3.9 -4.3 | 21.2 +1.8 -1.8 | -- | 0.25 +0.12 -0.08 | ≤ 0.000010 | ≥ 0.99 | 46.8 +3.7 -4.1 |
| GW230914_111401 | v1 | GWTC-4.0 | 1378725259.7 | 60 +11 -11 | 36 +13 -12 | 17.2 | 2600 +1500 -1200 | 0.12 +0.18 -0.18 | 96 +15 -10 | 39.9 +7.4 -6.2 | -- | 0.46 +0.21 -0.18 | ≤ 0.000010 | ≥ 0.99 | 91.6 +13.8 -9.7 |
| GW230911_195324 | v1 | GWTC-4.0 | 1378497222.2 | 36.2 +7.0 -7.3 | 20.3 +5.6 -5.1 | 11.1 | 1080 +980 -540 | -0.06 +0.19 -0.21 | 56.4 +6.7 -6.3 | 23.2 +3.1 -2.8 | -- | 0.21 +0.16 -0.10 | 0.00100 | ≥ 0.99 | 54.2 +6.4 -6.1 |
| GW230904_152545 | v1 | GWTC-4.0 | 1377876363.2 | -- | -- | 9.2 | -- | -- | -- | -- | -- | -- | 18 | 0.74 | -- |
| GW230904_051013 | v1 | GWTC-4.0 | 1377839431.1 | 10.6 +4.0 -1.9 | 7.1 +1.5 -1.8 | 10.5 | 1000 +590 -410 | 0.05 +0.15 -0.07 | 17.9 +2.3 -1.6 | 7.56 +0.52 -0.59 | -- | 0.20 +0.10 -0.08 | 0.000039 | ≥ 0.99 | 17.1 +2.4 -1.6 |
| GW230902_224555 | v1 | GWTC-4.0 | 1377729973.7 | -- | -- | 7.5 | -- | -- | -- | -- | -- | -- | 51 | 0.52 | -- |
| GW230902_172430 | v1 | GWTC-4.0 | 1377710688.8 | -- | -- | 8.5 | -- | -- | -- | -- | -- | -- | 39 | 0.59 | -- |
| GW230902_122814 | v1 | GWTC-4.0 | 1377692912.9 | -- | -- | 8.1 | -- | -- | -- | -- | -- | -- | 2.0 | 0.84 | -- |
| GW230831_134621 | v1 | GWTC-4.0 | 1377524799.7 | -- | -- | 8.8 | -- | -- | -- | -- | -- | -- | 12 | 0.80 | -- |
| GW230831_015414 | v1 | GWTC-4.0 | 1377482072.1 | 43 +16 -10 | 31 +12 -10 | 8.6 | 4700 +3900 -2700 | 0.04 +0.28 -0.28 | 74 +23 -15 | 31.2 +9.9 -6.5 | -- | 0.74 +0.48 -0.38 | 0.29 | ≥ 0.99 | 70 +22 -14 |
| GW230830_064744 | v1 | GWTC-4.0 | 1377413282.2 | -- | -- | 8.5 | -- | -- | -- | -- | -- | -- | 3.5 | 0.55 | -- |
| GW230825_041334 | v1 | GWTC-4.0 | 1376972032.5 | 45 +17 -13 | 27.8 +12.1 -8.8 | 8.8 | 4600 +4100 -2800 | 0.31 +0.23 -0.28 | 73 +22 -16 | 30.4 +9.5 -6.5 | -- | 0.73 +0.50 -0.39 | 0.10 | 0.98 | 69 +21 -15 |
| GW230824_135331 | v1 | GWTC-4.0 | 1376920429.9 | -- | -- | 9.7 | -- | -- | -- | -- | -- | -- | 6.2 | 0.58 | -- |
| GW230824_033047 | v1 | GWTC-4.0 | 1376883065.7 | 53 +16 -12 | 36 +12 -13 | 11.1 | 4600 +2600 -2200 | -0.01 +0.21 -0.24 | 88 +19 -12 | 36.8 +8.6 -5.8 | -- | 0.73 +0.33 -0.30 | ≤ 0.000010 | ≥ 0.99 | 84 +18 -12 |
| GW230823_142524 | v1 | GWTC-4.0 | 1376835942.6 | -- | -- | 8.8 | -- | -- | -- | -- | -- | -- | 1.6 | 0.86 | -- |
| GW230822_230337 | v1 | GWTC-4.0 | 1376780635.5 | -- | -- | 8.3 | -- | -- | -- | -- | -- | -- | 1.5 | 0.86 | -- |
| GW230820_212515 | v1 | GWTC-4.0 | 1376601934.0 | 64 +22 -17 | 32 +19 -16 | 9.3 | 3900 +2900 -2000 | 0.22 +0.29 -0.28 | 96 +21 -15 | 37.9 +11.2 -9.4 | -- | 0.63 +0.37 -0.29 | 0.24 | 0.97 | 92 +19 -14 |
| GW230819_171910 | v1 | GWTC-4.0 | 1376500768.4 | 73 +51 -22 | 33 +21 -18 | 9.9 | 3800 +3400 -2000 | -0.04 +0.34 -0.44 | 108 +45 -22 | 41 +14 -11 | -- | 0.62 +0.43 -0.29 | 0.011 | ≥ 0.99 | 104 +45 -21 |
| GW230817_212349 | v1 | GWTC-4.0 | 1376342647.1 | -- | -- | 7.8 | -- | -- | -- | -- | -- | -- | 6.2 | 0.86 | -- |
| GW230814_230901 | v1 | GWTC-4.0 | 1376089759.8 | 33.6 +2.5 -2.0 | 28.4 +2.0 -2.5 | 43.0 | 280 +150 -120 | -0.01 +0.06 -0.07 | 62.0 +1.9 -1.9 | 26.84 +0.84 -0.88 | -- | 0.06 +0.03 -0.03 | ≤ 0.000010 | ≥ 0.99 | 59.0 +1.8 -1.7 |
| GW230814_061920 | v1 | GWTC-4.0 | 1376029178.5 | 72 +18 -15 | 43 +16 -16 | 11.2 | 3600 +2800 -1700 | 0.08 +0.25 -0.25 | 115 +24 -20 | 48 +11 -10 | -- | 0.60 +0.36 -0.25 | 0.00063 | ≥ 0.99 | 110 +22 -19 |
| GW230811_032116 | v1 | GWTC-4.0 | 1375759294.3 | 36.4 +8.4 -7.4 | 21.7 +6.7 -4.8 | 13.6 | 2000 +1100 -1000 | 0.02 +0.17 -0.17 | 58.3 +8.4 -6.3 | 24.0 +4.0 -2.3 | -- | 0.37 +0.16 -0.17 | ≤ 0.000010 | ≥ 0.99 | 55.8 +8.0 -6.1 |
| GW230807_205045 | v1 | GWTC-4.0 | 1375476663.4 | -- | -- | 8.7 | -- | -- | -- | -- | -- | -- | 2.9 | 0.59 | -- |
| GW230806_204041 | v1 | GWTC-4.0 | 1375389659.9 | 51 +17 -12 | 35 +13 -12 | 9.4 | 5500 +3500 -2900 | 0.08 +0.26 -0.26 | 85 +23 -15 | 35.9 +10.4 -6.7 | -- | 0.84 +0.41 -0.39 | 0.0037 | ≥ 0.99 | 81 +22 -14 |
| GW230805_034249 | v1 | GWTC-4.0 | 1375242188.0 | 32.3 +12.4 -7.3 | 22.7 +7.5 -7.6 | 9.5 | 3300 +2400 -1600 | 0.06 +0.26 -0.28 | 55.2 +13.1 -9.7 | 23.2 +5.6 -4.1 | -- | 0.56 +0.32 -0.24 | 0.0037 | ≥ 0.99 | 52.6 +12.3 -9.1 |
| GW230803_033412 | v1 | GWTC-4.0 | 1375068870.4 | 46 +19 -13 | 29 +11 -10 | 9.4 | 4800 +3700 -2400 | 0.08 +0.28 -0.30 | 75 +22 -16 | 31.1 +9.2 -6.7 | -- | 0.75 +0.45 -0.33 | 0.31 | ≥ 0.99 | 72 +21 -15 |
| GW230731_215307 | v1 | GWTC-4.0 | 1374875605.9 | 10.3 +2.8 -1.4 | 7.8 +1.2 -1.6 | 12.2 | 1110 +340 -460 | -0.05 +0.11 -0.06 | 18.3 +1.5 -1.0 | 7.77 +0.57 -0.35 | -- | 0.22 +0.06 -0.08 | ≤ 0.000010 | ≥ 0.99 | 17.45 +1.53 -1.00 |
| GW230729_082317 | v1 | GWTC-4.0 | 1374654215.2 | 12.4 +7.8 -2.8 | 7.6 +2.1 -2.6 | 9.5 | 1620 +800 -750 | 0.12 +0.23 -0.12 | 20.4 +5.0 -2.4 | 8.35 +0.93 -0.74 | -- | 0.30 +0.12 -0.13 | 0.18 | 0.95 | 19.4 +5.2 -2.3 |
| GW230728_083628 | v1 | GWTC-4.0 | 1374568606.9 | -- | -- | 13.1 | -- | -- | -- | -- | -- | -- | 1.5 | 0.73 | -- |
| GW230726_002940 | v1 | GWTC-4.0 | 1374366598.1 | 35.3 +8.5 -5.7 | 28.0 +5.8 -5.6 | 10.5 | 2000 +1200 -1000 | -0.03 +0.20 -0.22 | 63.4 +10.0 -7.5 | 27.2 +4.2 -3.2 | -- | 0.37 +0.18 -0.17 | ≤ 0.000010 | ≥ 0.99 | 60.5 +9.4 -7.1 |
| GW230723_101834 | v1 | GWTC-4.0 | 1374142732.4 | 16.7 +6.1 -3.5 | 10.8 +2.8 -2.8 | 10.1 | 1580 +680 -960 | -0.18 +0.25 -0.16 | 27.5 +5.1 -2.6 | 11.44 +2.04 -0.90 | -- | 0.30 +0.11 -0.17 | 0.0034 | ≥ 0.99 | 26.5 +5.0 -2.6 |
| GW230723_084820 | v1 | GWTC-4.0 | 1374137318.4 | -- | -- | 8.4 | -- | -- | -- | -- | -- | -- | 3.9 | 0.64 | -- |
| GW230721_222634 | v1 | GWTC-4.0 | 1374013612.8 | -- | -- | 7.9 | -- | -- | -- | -- | -- | -- | 4.1 | 0.73 | -- |
| GW230717_102139 | v1 | GWTC-4.0 | 1373624517.1 | -- | -- | 8.3 | -- | -- | -- | -- | -- | -- | 29 | 0.70 | -- |
| GW230712_090405 | v1 | GWTC-4.0 | 1373187863.9 | 32 +16 -10 | 11.4 +15.1 -4.2 | 9.5 | 1900 +2070 -910 | -0.03 +0.33 -0.30 | 44.8 +20.8 -9.3 | 15.7 +11.0 -2.5 | -- | 0.35 +0.30 -0.15 | 0.018 | ≥ 0.99 | 43.5 +19.5 -9.3 |
| GW230709_122727 | v1 | GWTC-4.0 | 1372940865.2 | 45 +15 -11 | 30 +13 -13 | 10.2 | 4500 +3400 -2400 | 0.08 +0.29 -0.30 | 75 +20 -13 | 31.2 +9.3 -6.6 | -- | 0.72 +0.42 -0.34 | 0.011 | ≥ 0.99 | 71 +19 -13 |
| GW230709_063445 | v1 | GWTC-4.0 | 1372919703.1 | -- | -- | 7.9 | -- | -- | -- | -- | -- | -- | 15 | 0.83 | -- |
| GW230708_230935 | v1 | GWTC-4.0 | 1372892993.5 | 65 +18 -15 | 39 +14 -14 | 10.0 | 3400 +2100 -1500 | 0.01 +0.27 -0.28 | 103 +21 -15 | 42.6 +9.3 -7.5 | -- | 0.57 +0.28 -0.23 | 0.0037 | ≥ 0.99 | 99 +20 -14 |
of 129 events