Table 2.
H I mosaic cubes of the MeerKAT Fornax Survey.
| Label | Restoring beam ( † ) | Channel width | Briggs robust | uv taper | Pixel size | Noise | N(H I) |
|---|---|---|---|---|---|---|---|
| (Bmaj × Bmin, BPA) | (km s−1) | (mJy beam−1) | (cm−2) | ||||
| 11″ | 12.2″ × 9.6″, 142° | 1.4 | 0.0 | 6″ | 2″ | 0.30 | 5.0 × 1019 |
| 21″ | 22.6″ × 19.3″, 135° | 1.4 | 0.0 | 15″ | 5″ | 0.26 | 1.2 × 1019 |
| 41″ | 42.6″ × 40.4″, 115° | 1.4 | 0.5 | 30″ | 10″ | 0.24 | 2.7 × 1018 |
| 66″ | 66.9″ × 65.0″, 83° | 1.4 | 0.5 | 60″ | 20″ | 0.29 | 1.3 × 1018 |
| 98″ | 100.2″ × 95.8″, 68° | 1.4 | 1.0 | 90″ | 30″ | 0.37 | 7.6 × 1017 |
Notes. ( † )Each channel of each fields of the MeerKAT Fornax Survey has its own uv coverage and therefore its own dirty beam. When cleaning with WSclean (Sect. 3.8), we set the restoring beam parameters to the fixed values given in this table. These are the median values of Bmaj, Bmin, and BPA obtained as a fit to the main lobe of the dirty beam of each channel and each field during the first year of the survey (24 of 91 fields). Because of the homogeneity of our observation settings, the distributions of these parameters are narrow. The 10th and 90th percentile levels of Bmaj and Bmin are within ±10% of the median value, and those of BPA are within ±10 deg.
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