Fig. 7.
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Moment-0 maps from VLA B-configutration 21 cm observations. The colour mapping encodes NHI in 1020 cm−2 and the beam for each dataset is indicated as a black ellipse. Top panel: VLA-B configuration data. Bottom panel: VLA-B configuration observations, tapered at 7 kλ; this map has been used to draw the NHI contours in Fig. 8.
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