Radial velocity distribution (υ_r) in accretion disks in models v05e00 (left), v10e00 (middle), and v20e00 (right). The coordinate frame is such that the companion sink particle (marked as a black dot) is located at (0, 0) and has velocity (0, 0, 0), and the AGB star is located at the left side on the y = 0 axis. The estimated radius of the circumstellar disks, as calculated in Sect. 4.4, are marked as a dotted circle.