Fig. 13

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Azimuthally averaged profiles of velocity (top), line width (middle) and peak intensity (bottom) residuals obtained for 12CO, 13CO, and C18O, for the disc around MWC 480. The radial location of millimetre dust gaps and rings is illustrated as dashed and solid lines, respectively. The radial distance of the most prominent kink apparent in 12CO channel maps is shown by the dotted purple line. Strong pressure bumps traced by minimal velocity gradients are marked with minuses in the top panel. Peak meridional flows hinting at gas moving away and towards the disc midplane are highlighted with arrows pointing up and down in the second top panel. The planet marker indicates the orbital radius of the planet candidate proposed at R = 245 au (see Table 2).
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