Open Access

Fig. A.1

image

Channel maps (colour scale in mJy) of the AlO N = 98 transition in IK Tau. White contours indicate the continuum at (−1, 1, 4, 16, 64, 256) × 0.3 mJy. The ordinate and co-ordinate axis give the offset of the right ascension and declination, respectively, in units of arcseconds. The ALMA beam size is shown in the bottom left corner of the top panel.

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