Highlight
Free Access

Fig. 6

image

Radial drift speed vr of particles as a function of the particle size τf and solid concentration Z = Σsolid/ Σtotal. Speed is measured in terms of the sound speed cs. All solids experience gas drag. Particles of size τf ~ 1 experience very rapid drift, which decreases for larger particles. In addition, higher Z forces the gas component to orbit closer to the Keplerian speed, reducing | vr |. However, in all cases, the drift speed remains high. For reference, for | vr | = 0.005cs the particles cross the disk after a few thousand years.

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.