Table A.1.
The CSO candidate sample collected in this paper.
| Source name | Right ascension (h m s), declination (° ′ ″) | z | Type | Ref. | Classification |
|---|---|---|---|---|---|
| J0003+2129 | 00:03:19.350009 +21:29:44.50822 | 0.450 | Q | 2 | CJ |
| J0005+0524 | 00:05:20.215504 +05:24:10.80305 | 1.887 | Q | 2 | CJ |
| J0048+3157 | 00:48:47.141485 +31:57:25.08483 | 0.015 | G | 2 | CSO |
| J0119+3210 | 01:19:35.001084 +32:10:50.06103 | 0.0602 | G | 2 | CSOc |
| J0650+6001 | 06:50:31.254327 +60:01:44.55477 | 0.455 | Q | 1,2 | CSOc |
| J0741+2706 | 07:41:25.732847 +27:06:45.39211 | 0.772 | Q | 3 | CSO |
| J0753+4231 | 07:53:03.337437 +42:31:30.76470 | 3.594 | Q | 1,3 | CJ |
| J0831+4608 | 08:31:39.802592 +46:08:00.77140 | 0.131 | G | 3 | CSOc |
| J0832+1832 | 08:32:16.040301 +18:32:12.13265 | 0.154 | G | 3 | CSO |
| J0906+4636 | 09:06:15.539809 +46:36:19.02416 | 0.0847 | G | 3 | CSOc |
| J0943+1702 | 09:43:17.223952 +17:02:18.96252 | 1.600 | Q | 3 | CSOc |
| J1110+4817 | 11:10:36.324124 +48:17:52.44997 | 0.742 | Q | 3 | CSO |
| J1111+1955 | 11:11:20.065601 +19:55:36.00040 | 0.299 | G | 1,2,3 | CSO |
| J1148+5924 | 11:48:50.358181 +59:24:56.38223 | 0.0108 | G | 1,3 | CSOc |
| J1148+5254 | 11:48:56.569098 +52:54:25.32250 | 1.638 | Q | 2 | CJ |
| J1158+2450 | 11:58:25.787561 +24:50:17.96392 | 0.203 | G | 3 | CSO |
| J1234+4753 | 12:34:13.330774 +47:53:51.23687 | 0.373 | Q | 3 | CSO |
| J1244+4048 | 12:44:49.187531 +40:48:06.16239 | 0.814 | Q | 1,3 | CSO |
| J1247+6723 | 12:47:33.329586 +67:23:16.44894 | 0.107 | G | 2 | CSO |
| J1254+1856 | 12:54:33.271499 +18:56:01.90866 | 0.125 | G | 3 | CSOc |
| J1256+5652 | 12:56:14.233979 +56:52:25.23760 | 0.0417 | G | 2 | CSO |
| J1309+4047 | 13:09:41.508928 +40:47:57.23878 | 2.908 | Q | 2 | CSOc |
| J1310+3403 | 13:10:04.433638 +34:03:09.10854 | 0.960 | G | 3 | CSO |
| J1311+1417 | 13:11:07.824225 +14:17:46.64778 | 1.955 | Q | 1 | CJ |
| J1326+3154 | 13:26:16.511702 +31:54:09.52057 | 0.368 | G | 2,3 | CSO |
| J1335+4542 | 13:35:21.962189 +45:42:38.23218 | 2.451 | Q | 2 | CJ |
| J1358+4737 | 13:58:40.666477 +47:37:58.31155 | 0.230 | G | 3 | CSO |
| J1407+2827 | 14:07:00.394417 +28:27:14.69011 | 0.077 | G | 2 | CSO |
| J1511+0518 | 15:11:41.266365 +05:18:09.25931 | 0.084 | G | 2 | CSO |
| J1559+5924 | 15:59:01.701929 +59:24:21.83416 | 0.060 | G | 2,3 | CSOc |
| J1602+2418 | 16:02:13.838513 +24:18:37.79350 | 1.791 | Q | 3 | CSO |
| J1616+0459 | 16:16:37.556823 +04:59:32.73651 | 3.215 | Q | 2 | CJ |
| J1755+6236 | 17:55:48.435228 +62:36:44.12661 | 0.0276 | G | 2 | CSO |
| J1815+6127 | 18:15:36.792244 +61:27:11.64744 | 0.601 | Q | 1 | CSO |
| J1816+3457 | 18:16:23.901115 +34:57:45.74704 | 0.245 | G | 1,2 | CJ |
| J1823+7938 | 18:23:14.108654 +79:38:49.00188 | 0.224 | Q | 1,2 | CSOc |
| J1945+7055 | 19:45:53.519774 +70:55:48.72880 | 0.101 | G | 1,2 | CSO |
| J2022+6136 | 20:22:06.681748 +61:36:58.80472 | 0.227 | G | 1,2 | CJ |
| J2245+0324 | 22:45:28.284742 +03:24:08.86404 | 1.350 | Q | 1 | CJ |
| J2355+4950 | 23:55:09.458159 +49:50:08.33951 | 0.238 | G | 1,2 | CSO |
Notes. Column (1): source name. Column (2): Equatorial coordinates from Astrogeo (Petrov & Kovalev 2025). Column (3): Spectroscopic or photometric redshifts collected from the NASA/IPAC Extragalactic Database (https://ned.ipac.caltech.edu/) or SIMBAD (https://simbad.u-strasbg.fr/). Column (4) lists the optical identification of the source type from SIMBAD. Q – quasar; G – galaxy. Column (5) lists the references to the sources. Column (6) presents the classification of the radio morphology: CSO – confirmed CSO with Gaia-identified AGN between two radio components; CJ – one-sided core–jet with Gaia-identified AGN at the end of the radio structure; CSO candidate – sources with large optical–radio offset remain as CSO candidates. References: 1 – Peck & Taylor (2000); 2 – An & Baan (2012); 3 – Tremblay et al. (2016).
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