Distribution of some physical quantities: a) density profile along a spherical surface for fixed radius (R = 1.7 × 10¹¹ cm) and for θ between 0° (rotation axis) and 90° (equatorial plane), the horizontal dashed lines show the density of the disk (ρ_d) and the corona (ρ_c) at the contact layer; b) angular velocity of the disk in the equatorial plane, the vertical dashed line identifies the truncation radius (R_d) (run F4f1.00a).