Shadow lag measurements in HD 142527 yield an outer-disk cooling time of 20-90 yr (t_cool Ω_K = 0.1-0.4), implying maximum dust grain sizes of ~0.1-1 mm and VSI-sustaining turbulence.
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Probing disk dynamics and dust evolution through shadows in protoplanetary disks: A case study of the HD 142527 disk
Shadow lag measurements in HD 142527 yield an outer-disk cooling time of 20-90 yr (t_cool Ω_K = 0.1-0.4), implying maximum dust grain sizes of ~0.1-1 mm and VSI-sustaining turbulence.