Fig. A.1
PV diagram for NGC 7252 obtained by integrating the H I emission along the declination axis. The new data are shown in greyscale. Contours are at 18, 36, and 72 mJy/beam. The archival data (published by Hibbard et al. 1994) are represented with a red contour at 18 mJy/beam. Both datasets were spatially smoothed to 25′′ resolution.
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