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Fig. 10.
ALMA image of the red supergiant star Wd1-20 shown in colour-scale. Over-plotted are the 8.6 GHz radio contours from recent ATCA observations (see Andrews et al. 2018, for further details) at levels of −1, 1, 1.41, 2, 2.83, 4, 5.66, 8, 11.31, 16 × 91 μJy beam−1.
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