Table 1.
Radio image parameters for low-resolution and high-resolution (in parentheses) images.
| Band | tsource | ν | Δν | Robust | bmaj | bmin | PA | rms | δcal (2) |
|---|---|---|---|---|---|---|---|---|---|
| h | MHz | MHz | ″ | ″ | deg | μJy bm−1 | |||
| LOFAR LBA | 9.0 (1) | 54 | 24 | 0 (−1) | 24.2 (11.8) | 20.0 (10.7) | 127 (73) | 2.2 (2.9)×103 | 0.10 |
| LOFAR HBA | 8.0 | 144 | 48 | 0 (−1) | 11.9 (4.9) | 8.2 (4.3) | 125 (106) | 5.9 (8.0)×101 | 0.10 |
| uGMRT B3 | 3.9 | 400 | 200 | 0.5 (−1) | 17.8 (11.3) | 7.4 (3.7) | 22 (27) | 3.9 (3.1)×101 | 0.05 |
| uGMRT B4 | 7.5 | 650 | 200 | 0.25 (−1) | 8.0 (3.9) | 4.8 (2.5) | 37 (38) | 0.8 (1.1)×101 | 0.05 |
| uGMRT B4 low | 7.5 | 600 | 100 | 0.25 (−1) | 8.8 (4.2) | 5.2 (2.7) | 41 (40) | 1.0 (1.5)×101 | 0.05 |
| uGMRT B4 high | 7.5 | 700 | 100 | 0.25 (−1) | 7.4 (3.7) | 4.4 (2.3) | 33 (35) | 0.9 (1.6)×101 | 0.05 |
| uGMRT B5 | 4.8 | 1230 | 333 | 0.25 (−0.5) | 6.9 (4.6) | 4.2 (2.7) | 113 (112) | 2.5 (3.8)×101 | 0.05 |
Notes. (1)This is the combined on-source time for the three LoLSS pointings covering NGC 2276. For all three, NGC 2276 is offset from pointing centre and therefore the effective on-source time, factoring in the diminishing primary-beam response, is certainly < 9 h. (2)The relative calibration uncertainty on the flux-scale.
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