Table 2.
Flux densities and spectral indices of the central region.
| Source name | Number of | Speak | Speak | Sint | Speak | Speak |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| components | LOFAR6 [mJy] | LOFAR-IB [mJy] | LOFAR-IB [mJy] | FIRST [mJy] | VLASS [mJy] | ||||
| Remnant radio source | |||||||||
| J104622+581427 | 0 | < 1.79 | < 0.11 | – | < 0.36 | < 0.43 | – | – | – |
| Six restarted candidates | |||||||||
| J104113+580755( † ) | 2 (C+J) | 5 ± 1 | 1.2 ± 0.5 | 2.6 ± 0.6⋆ | 2.6 ± 0.2 | 3.0 ± 0.3 | 0.3 ± 0.1 | 0.0 ± 0.1 | –0.2 ± 0.2 |
| J104204+573449( † ) | 1 (EL) | 6 ± 1 | 0.6 ± 0.3 | 1.9 ± 0.5⋆ | 1.4 ± 0.2 | 1.1 ± 0.2 | 0.6 ± 0.1 | 0.2 ± 0.1 | 0.3 ± 0.3 |
| J104809+573010 | 1 UR | < 0.91 | 0.11 ± 0.03⋆ | 0.05 ± 0.02 | < 0.42 | < 0.35 | – | >–0.58 | – |
| J104842+585326 | 0 | < 0.23 | < 0.11 | – | < 0.42 | < 0.50 | – | – | – |
| J104912+575014( † ) | 1 RC | 9 ± 2 | 1.8 ± 0.5 | 4.2 ± 0.9⋆ | 1.6 ± 0.2 | 1.1 ± 0.2 | 0.8 ± 0.1 | 0.4 ± 0.1 | 0.5 ± 0.3 |
| J105436+590901( † ) | 1 (EL) | 4 ± 1 | 1.6 ± 0.5 | 3.3 ± 0.8⋆ | 4.8 ± 0.3 | 3.6 ± 0.4 | –0.1 ± 0.1 | –0.2 ± 0.1 | 0.4 ± 0.2 |
| Twenty-eight active comparison sources | |||||||||
| J103753+571812 | 0 | 1.2 ± 0.3 | < 0.18 | – | < 0.45 | < 0.47 | >0.44 | – | – |
| J103803+581833( † ) | 3 (C+2J) | 4 ± 1 | 0.6 ± 0.1⋆ | 0.4 ± 0.1 | 0.7 ± 0.2 | < 0.47 | 0.8 ± 0.2 | –0.1 ± 0.1 | >0.59 |
| J103840+573649( † ) | 1 RC | 2.8 ± 0.8 | 0.5 ± 0.3 | 1.4 ± 0.4⋆ | 0.6 ± 0.2 | 0.5 ± 0.1 | 0.7 ± 0.2 | 0.3 ± 0.2 | 0.5 ± 0.5 |
| J103856+575247 | 1 UR | 18 ± 4 | 0.8 ± 0.2⋆ | 1.2 ± 0.2 | 3.3 ± 0.4 | 2.2 ± 0.3 | 0.7 ± 0.1 | –0.6 ± 0.1 | 0.5 ± 0.2 |
| J103913+581445( † ) | 3 (C+2J) | < 10.42 | 1.7 ± 0.7 | 3.0 ± 0.8⋆ | < 0.36 | < 0.38 | – | >0.95 | – |
| J103953+583213 | 1 UR | < 1.86 | 0.6 ± 0.1⋆ | 0.7 ± 0.2 | 1.3 ± 0.2 | 0.9 ± 0.2 | < 0.17 | –0.4 ± 0.1 | 0.5 ± 0.3 |
| J104130+575942( † ) | 2 (2J) | 33 ± 9 | 2 ± 3 | 27 ± 6⋆ | 9.6 ± 0.5 | 3.7 ± 0.4 | 0.5 ± 0.1 | 0.5 ± 0.1 | 1.3 ± 0.2 |
| J104208+592018 | 1 UR | 3.4 ± 0.8 | 0.5 ± 0.1⋆ | 0.7 ± 0.2 | 0.5 ± 0.2 | 0.9 ± 0.2 | 0.8 ± 0.2 | 0.0 ± 0.2 | –0.6 ± 0.4 |
| J104223+575026( † ) | 2 (2J) | 1.9 ± 0.5 | 0.3 ± 0.2 | 0.9 ± 0.3⋆ | < 0.42 | < 0.43 | >0.68 | >0.36 | – |
| J104320+585621( † ) | 1 (EL) | 4.5 ± 0.9 | 0.4 ± 0.2 | 1.0 ± 0.3⋆ | 1.0 ± 0.2 | 0.8 ± 0.2 | 0.7 ± 0.1 | 0.0 ± 0.1 | 0.3 ± 0.4 |
| J104352+581327( † ) | 1 (EL) | 7 ± 2 | 0.9 ± 0.4 | 2.2 ± 0.5⋆ | 2.1 ± 0.2 | 1.4 ± 0.2 | 0.5 ± 0.1 | 0.0 ± 0.1 | 0.5 ± 0.2 |
| J104630+582745( † ) | 2 (2J) | 13 ± 4 | 1 ± 1 | 6 ± 2⋆ | 2.3 ± 0.2 | 1.0 ± 0.2 | 0.8 ± 0.1 | 0.4 ± 0.1 | 1.1 ± 0.3 |
| J104655+572302 | 1 UR | 0.8 ± 0.2 | 0.25 ± 0.07⋆ | 0.20 ± 0.06 | 0.6 ± 0.2 | < 0.38 | 0.2 ± 0.2 | –0.4 ± 0.2 | >0.49 |
| J104819+573515( † ) | 1 (EL) | 9 ± 2 | 4.2 ± 0.9 | 8 ± 2⋆ | 0.8 ± 0.2 | < 0.37 | 1.1 ± 0.1 | 1.0 ± 0.1 | >0.97 |
| J104843+572047( † ) | 1 (EL) | 5 ± 1 | 1.5 ± 0.4 | 3.5 ± 0.7⋆ | 1.7 ± 0.2 | 1.1 ± 0.2 | 0.5 ± 0.1 | 0.3 ± 0.1 | 0.6 ± 0.3 |
| J104917+583627 | 0 | < 28.12 | < 0.3 | – | < 0.45 | < 0.61 | – | – | – |
| J104918+574530( † ) | 1 (EL) | 1.8 ± 0.4 | 0.5 ± 0.2 | 1.0 ± 0.2⋆ | < 0.42 | < 0.45 | >0.64 | >0.38 | – |
| J105117+583832 | 0 | < 1.98 | < 0.12 | – | < 0.45 | < 0.43 | – | – | – |
| J105132+571115( † ) | 1 (EL) | 8 ± 2 | 0.9 ± 0.5 | 3.3 ± 0.8⋆ | 3.0 ± 0.4 | 2.0 ± 0.2 | 0.5 ± 0.1 | 0.0 ± 0.1 | 0.6 ± 0.2 |
| J105137+592005 | 0 | < 0.77 | < 0.18 | – | < 0.45 | < 0.41 | – | – | – |
| J105160+570009 | 0 | < 3.46 | < 0.15 | – | 0.6 ± 0.2 | 0.6 ± 0.2 | < 0.81 | < –0.60 | 0.0 ± 0.5 |
| J105237+573103 | 0 | < 47.34 | < 0.21 | – | < 3.09 | < 0.50 | – | – | – |
| J105326+570310 | 0 | < 2.98 | < 0.17 | – | < 0.45 | < 0.39 | – | – | – |
| J105342+565408 | 0 | < 0.76 | < 0.18 | – | < 0.39 | < 0.43 | – | – | – |
| J105426+573649( † ) | 3 (C+2J) | < 23.98 | 1.2 ± 0.8 | 4 ± 1⋆ | < 3.21 | 1.1 ± 0.2 | – | >0.05 | < 1.41 |
| J105435+565500 | 0 | < 3.86 | < 0.20 | – | < 0.43 | < 0.52 | – | – | – |
| J105456+565220 | 0 | 1.2 ± 0.3 | < 0.19 | – | < 0.51 | < 0.43 | >0.40 | – | – |
| J105622+575334 | 0 | 1.0 ± 0.2 | < 0.15 | – | < 0.37 | < 0.36 | >0.44 | – | – |
Notes. In Col. 1 are the source names in J2000 coordinates, where ( † ) indicates sources in which the central region is resolved; Col. 2 lists the number of components detected in the central region of each source in the LOFAR-IB image, as well as their components, where “C” = core, “J” = jet, “2J” = two jets, “EL” = elongated, “UR” = unresolved, “RC” = resolved compact; Cols. 3, 4, 5, 6, and 7 are core flux densities measured directly from images (see Sect. 4.2) at 150 MHz with 6.00″ × 6.00″ and 0.38″ × 0.30″ resolution, 1.4 GHz with 5.40″ × 5.40″ resolution, and 3 GHz with 2.81″ × 2.44″ resolution, respectively; Cols. 8, 9, and 10 are the spectral indices of the central region emission calculated between 150 MHz and 1.4 GHz, and 1.4 and 3 GHz.
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