Table 1.
Gridding parameter values.
| Name | Default | Fig. 3 | Minimum |
|---|---|---|---|
| Oversampling | 63 | 16535 | 4095 |
| Kernel size | 7 | 15 | 3 |
| w layers | 32 | 1000 | 500 |
| Kernel function | Sinc × KB | Sinc × KB | Sinc × KB |
| Padding | 1.2 | 2 | 1 |
Notes. Columns 2, 3, and 4 specify the default settings in WSCLEAN; the settings used in Fig. 3 (unless otherwise specified); and the minimum settings that are required to have an excess power of at most 0.1 mK in the range k = 0.5–1 h Mpc−1, respectively. The latter holds for both the foreground-avoidance and the foreground-subtraction approach.
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