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Table 1
Parameters of VLA observations.
| Project | AB1300 | AB1278 | AB1246 | AG732 | 15A–019 (a) |
|---|---|---|---|---|---|
| Observation date | 19/10/2008 | 14/9/2007 | 1/8/2007 | 2/1/2007 | 23/6/2015–6/9/2015 |
| Configuration | A | AB | A | C | A |
| Band | L | C | X | K | K |
| ν (GHz) | 1.435 | 4.86 | 8.46 | 22.357 (b) | 25.056 (b) |
| λ (cm) | 21 | 6.2 | 3.5 | 1.3 (b) | 1.2 (b) |
| Cont. bandwidth (MHz) | 100 | 172 | 172 | 0.4 | 3000 (c) |
| Flux calibrator | 3C286 | 3C286 | 3C286,3C48 | 3C286 | 3C286,3C48 |
| Phase calibrator | 1832–105 | 1832–105 | 1832–105 | 1832–105 | 1832–105 |
| Bandpass calibrator | 1832–105 | – | – | 1832–105 | 3C286 |
| Beam | 1.′′38×1.′′16 1. °4 | 0.′′415×0.′′380 –16. °1 | 0.′′238×0.′′200 –2. °3 | 1.′′57×0.′′943 14. °7 | 0.′′093×0.′′079 –19. °6 |
| Noise (mJy beam−1) | 0.18 | 0.17 | 0.034 | 0.92 (d) / 1.3 (e) | 0.014 (d) / 0.5 (e) |
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