|1. Calculate dimensionless parameters:||(headwind velocity)||Eq. (15)|
|(planet size)||Eq. (16)|
|(Stokes number)||Eq. (12)|
|2. Calculate impact radii:||Eq. (27), Eq. (32)|
|3. Determine regime:|
|Impact radius (accretion), :||)|
|Approach velocity :||Eq. (29)||3.2|
|Approach radius :||2.5|
Notes. Description of impact radii: , geometrical impact radius ( ); impact radius in settling regime; , modified (to cover the transition regime); impact radius in the hyperbolic regime; drag-enhanced impact radius for the 3-body regimes; , approach distance.
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