Fig. C.5.
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Top left: H I column density map overlaid on DECaLS optical image of HCG 30b. The contour levels are (0.29, 0.57, 1.14, 2.28, 4.57) × 1019 cm−2. Top centre: Moment-1 map, the contour levels are (4384, 4444, 4504, 4564, 4624, 4684, 4744) km s−1. The arrows indicate the slices from which the position-velocity diagrams shown at the bottom panels were derived. Top right: Signal-to-noise ratio map. Bottom left: Global H I profile. Bottom centre: Major axis position-velocity diagram. Bottom right: Minor axis position-velocity diagram.
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