Top panel: location of the opacity transition (solid line) as a function of the value for the α viscous stress parameter and for our fiducial disc model. The dashed line shows the location where the viscous timescale tdif becomes equal to half of the horseshoe libration timescale (tlib) whereas the solid-dashed line shows the radius where tdif equals the U-turn timescale. The intersection between the shaded area and the solid line corresponds to the range of radii where convergent migration for 3 M⊕ bodies is expected to occur. Lower panel: same but for a disc model ten times more massive than the MMSN.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.