Fig. 7

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Maps of the 3 mm continuum emission (contours) overlaid on the corresponding map of the spectral index at 3 mm. (a) Data obtained with ALMA on June 6, 2019. Black contour levels range from 10% to 90% in steps of 10% of the peak emission. White contour levels correspond to a spectral index equal to 0. The cross marks the position of the (proto)star. The circle in the bottom left represents the synthesised beam. (b) Same as the top panel, but for the map obtained on September 3, 2021.
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