Upper panel. Logarithmic density map with sample field lines (yellow solid lines) and speed vectors (blue arrows) superimposed. Middle panel. Radial profiles at the disk midplane of the rotation speed of the accretion disk Ω/Ω_⋆ (solid line), accretion sonic Mach number (dot-dashed line) and plasma β (dotted line). The Keplerian and the Ω = Ω_⋆ rotation profiles are plotted with a dashed line. Lower panel. Radial profiles of the specific torques acting on the disk (see the text for definitions): magnetic (Γ_mag, solid line), internal (Γ_int, dashed line), and kinetic (Γ_kin, dot-dashed line) torques. In the three panels we marked with vertical lines the position of the truncation radius (R_t) and the anchoring radii at the disk surface of the outermost magnetic surface steadily connecting the star and the disk (R_in) and of the innermost open field line threading the disk (R_out). The panels represent temporal averages over 54 stellar rotation periods.