Fig. D.1

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SPHERE PI image of HP Cha with the ALMA CO J = 3 − 2 channel maps as contours. The contours delineate the flux level of [3, 5, 10, 50]σ, where σ is the standard deviation as measured in the image background. The contours of channels redshifted relative to the systemic velocity (~3.8 km s−1) are shown in red, and blueshifted channels are shown in blue.
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