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Table 2.
Observations and properties of H I cubes for Sextans B.
| Number of antennas | 58 to 64 | ||||
| Total integration (target) | 3 h on source | ||||
| FWHM of primary beam | ∼1° | ||||
| Calibrated channel width | 6.4 kHz (1.4 km/s) | ||||
| Galaxy | Cube | Resolution (“×”) | Pixel size (″) | 1σrms (mJy/beam) | NHI (3σ, 20 km/s) (cm−2) |
| Sextans B | t = 0, r = 0 | 10.36 × 7.53 | 3 | 0.72 | 1.63 × 1020 |
| t = 0, r = 0.5 | 15.52 × 10.19 | 3 | 0.58 | 6.49 × 1019 | |
| t = 30, r = 0.5 | 46.32 × 41.03 | 5 | 0.72 | 6.68 × 1018 | |
| t = 60, r = 0.5 | 69.38 × 65.36 | 10 | 0.86 | 3.34 × 1018 | |
Notes. 1σrms measured at the velocity resolution of 1.4 km s−1. r is the Briggs robust weighting parameter, and t is the Gaussian taper applied to the uv data. t = 0, r = 0.5 corresponds to the high-resolution cube.
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