Table 1.
Basic properties of the radio maps and flux density measurements of individual radio lobes.
| Frequency | Bandwidth | Beam shape | σrms | Flux density | |||
|---|---|---|---|---|---|---|---|
| [MHz] | [MHz] | bmaj [″] | bmin [″] | bpa [°] | [mJy/b.a.] | [mJy] | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| J1021+1216 low resolution | Outer lobes | ||||||
| Eastern | Western | ||||||
| 323 | 33 | 45 | 45 | – | 0.6 | 167±17 | 132±14 |
| 608 | 33 | 45 | 45 | – | 0.25 | 83±9 | 56±6 |
| 1400 (a)(e) | 100 | 45 | 45 | – | 0.35 | 35±4 | 15±3 |
| 2500 (e) | 1024 | 45 | 45 | – | 0.11 | 26±3 | 16±2 |
| 3500 | 1024 | 45 | 45 | – | 0.14 | 14±2 | 8±1 |
| 5000 | 2048 | 45 | 45 | – | 0.17 | 8.0±0.8 | 4.0±0.5 |
| 6610 (e) | 1280 | 45 | 45 | – | 0.1 | 7.0±0.7 | 3.0±0.4 |
| J1021+1216 high resolution (f) | Inner lobes (b) | ||||||
| Eastern | Western | ||||||
| 323 | 33 | 13 | 9.4 | 76 | 0.23 | 52±5 | 116±12 |
| 608 | 33 | 10.3 | 9.1 | –76 | 0.1 | 32±3 | 71±7 |
| 5870 (e) | 720 | 13 | 13 | – | 0.07 | 10±1 | 18±2 |
| 6610 | 770 | 13 | 13 | – | 0.05 | 9±1 | 17±2 |
| 8500 (e) | 1024 | 13 | 13 | – | 0.04 | 6.2±0.7 | 13±1 |
| 9500 (e) | 1024 | 13 | 13 | – | 0.04 | 5.6±0.6 | 9±1 |
| 10 500 | 1024 | 13 | 13 | – | 0.04 | 5.1±0.6 | 7.6±0.8 |
| J1528+0544 low resolution | Outer lobes | ||||||
| Eastern | Western | ||||||
| 400 | 67 | 45 | 45 | – | 0.7 | 310±32 | 420±42 |
| 467 (e) | 67 | 45 | 45 | – | 0.7 | 281±29 | 384±39 |
| 650 | 100 | 45 | 45 | – | 0.33 | 295±30 | 360±36 |
| 700 (e) | 100 | 45 | 45 | – | 0.33 | 265±27 | 330±33 |
| 1400 (a)(e) | 100 | 45 | 45 | – | 0.35 | 177±18 | 217±22 |
| 3500 | 1024 | 45 | 45 | – | 0.2 | 88±9 | 125±13 |
| 5000 (e) | 2048 | 45 | 45 | – | 0.1 | 72±7 | 114±11 |
| 6610 | 1280 | 45 | 45 | – | 0.1 | 53±5 | 66±7 |
| J1528+0544 high resolution | Inner lobes | ||||||
| Eastern | Western | ||||||
| 3000 (c)(e) | 2072 | 3 | 2.6 | 59 | 0.2 | 11±1 | 8±1 |
| 4500 | 1024 | 1.7 | 1.3 | −15 | 0.017 | 8±1 | 5.7±0.6 |
| 5500 (e) | 1024 | 1.4 | 1.1 | −14 | 0.013 | 6.8±0.7 | 4.6±0.5 |
| 6500 | 1024 | 1.3 | 1.1 | −12 | 0.013 | 6.0±0.6 | 4.2±0.4 |
| 7500 (e) | 1024 | 1.1 | 0.9 | −9 | 0.013 | 5.4±0.5 | 3.7±0.4 |
| 18 500 | 1024 | 1.6 | 1.3 | 23 | 0.02 | 2.5±0.3 | 1.8±0.2 |
| 19 500 (e) | 1024 | 1.5 | 1.2 | 22 | 0.02 | 2.4±0.3 | 1.7±0.2 |
| 20 500 (e) | 1024 | 1.5 | 1.1 | 26 | 0.02 | 2.2±0.2 | 1.6±0.2 |
| 21 500 (e) | 1024 | 1.4 | 1.1 | 28 | 0.023 | 2.0±0.2 | 1.5±0.2 |
| 22 500 (e) | 1024 | 1.4 | 1.1 | 26 | 0.027 | 2.1±0.3 | 1.5±0.2 |
| 23 500 (e) | 1024 | 1.3 | 1 | 23 | 0.027 | 1.7±0.2 | 1.5±0.2 |
| 24 500 (e) | 1024 | 1.3 | 1 | 29 | 0.027 | 1.8±0.2 | 1.4±0.2 |
| 25 500 | 1024 | 1.3 | 1 | 28 | 0.027 | 1.5±0.2 | 1.5±0.2 |
| J2345–0449 low resolution | Outer lobes | ||||||
| Northern | Southern | ||||||
| 148 | 16 | 45 | 45 | – | 2 | 491±51 | 365±40 |
| 323 (e) | 33 | 45 | 45 | – | 1.3 | 386±40 | 238±26 |
| 325 | 32 | 45 | 45 | – | 0.7 | 285±29 | 217±22 |
| 608 | 33 | 45 | 45 | – | 0.3 | 153±15 | 94±10 |
| 1400 (a)(e) | 100 | 45 | 45 | – | 0.4 | 83±9 | 63±7 |
| 4860 | 100 | 45 | 45 | – | 0.1 | 22±2 | 13±2 |
| J2345–0449 high resolution | Inner lobes | ||||||
| Northern | Southern | ||||||
| 325 | 32 | 13.1 | 10.9 | −26.1 | 0.2 | 36±4 | 24±3 |
| 608 | 33 | 7 | 6 | 34.5 | 0.08 | 21±2 | 14±2 |
| 614 (e) | 30 | 7.1 | 6.0 | 59.8 | 0.1 | 24±2 | 20±2 |
| 888 (d)(e) | 288 | 25 | 25 | 0 | 0.4 | 18±2 | 11±2 |
| 1260 | 512 | 7.3 | 6.3 | 11.8 | 0.05 | 13±1 | 9±1 |
| 1370 (d)(e) | 144 | 10.8 | 9.1 | 64.3 | 0.18 | 13±2 | 5.7±0.8 |
| 1780 (e) | 512 | 6.2 | 5.1 | −0.7 | 0.025 | 12±1 | 5.6±0.6 |
| 4860 | 100 | 14.1 | 8.3 | −32.1 | 0.05 | 6.5±0.7 | 3.9±0.5 |
| 5000 (e) | 1024 | 10.6 | 10.2 | 2.6 | 0.016 | 4.3±0.4 | 2.2±0.2 |
Notes.NRAO VLA Sky Survey maps (Condon et al. 1998).
Measurements of the small region of emission extending west of the core of J1021+1216 (see Fig. 1) are presented in a separate table.
VLA Sky Survey map (Lacy et al. 2020).
Rapid ASKAP Continuum Survey map (McConnell et al. 2020; Hale et al. 2021).
J1021+1216 high-resolution VLA maps are mosaics of several pointings with slightly different beams, which were convolved to a common size of 13″ before they were combined.
Column designation: (1) Central frequency of the imaged map, (2) width of the band used for the imaging, (3) and (4) major and minor axes of the beam, (5) position angle of the elliptical beam, (6) 1σ noise level measured in the map, (7) and (8) flux densities along with the uncertainties measured in the individual lobes.
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