Table 1.
Image properties.
| Band | Configuration | Name | Restoring beam | RMS noise |
|
|---|---|---|---|---|---|
| Stokes I (σrms) | Stokes QU (σQU) | ||||
| μ Jy beam−1 | μ Jy beam−1 | ||||
| BCD | IM1 | 2.0″ × 2.0″ | 1.4 | 1.2 | |
| VLA C-band ( † ) | BCD | IM2 | 4.0″ × 4.0″ | 1.8 | 1.4 |
| (4.5–6.5 GHz) | BCD | IM3 | 5.0″ × 5.0″ | 1.9 | 1.5 |
| BCD | IM4 | 12.5″ × 12.5″ | 7.2 | 5.9 | |
| ABCD | IM5 | 2.0″ × 2.0″ | 1.1 | 0.9 | |
| VLA S-band ( † ) | ABCD | IM6 | 4.0″ × 4.0″ | 1.7 | 1.0 |
| (2–4 GHz) | ABCD | IM7 | 5.0″ × 5.0″ | 1.8 | 1.1 |
| ABCD | IM8 |
 |
8.2 | 6.1 | |
| ABCD | IM9 | 2.0″ × 2.0″ | 3.2 | 2.7 | |
| VLA L-band ( † ) | ABCD | IM10 | 4.0″ × 4.0″ | 6.0 | 3.2 |
| (1–2 GHz) | ABCD | IM11 | 5.0″ × 5.0″ | 6.8 | 3.4 |
| ABCD | IM12 | 12.5″ × 12.5″ | 12.4 | 10.1 | |
Notes. For full wideband Stokes IQU maps, imaging was performed using multi-scale clean, nterms = 2 and wprojplanes = 500. All Stokes IQU images are made with Briggs weighting with robust = 0 and different uv-tapering. For making all Stokes IQU images at 4″, 5″, and 12.5″ resolutions, we used nterms = 1 and robust = 0.0. The single channel images were re-gridded to the same pixel size. Due to slight difference in the beam size from 1–6.5 GHz, all Stokes IQU cubes (used for RM-Synthesis and QU-fitting) were convolved to the same beam size using CASA task imsmooth. ( † )For data reduction steps, we refer to van Weeren et al. (2016b, 2017b).
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