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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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