Density distribution at time t = t_B,0 of formation of first companion B (upper panels) and formation of second companion C at t = t_C,0 (lower panels). The panels show slices of the three planes spanned by the coordinate system (left: yz-plane, middle: zx-plane, and right: xy-plane) with the position of the forming sink at the center. The arrows show the velocity with respect to the systemic velocity in the corresponding plane for every 50th data point in the plane. The length of the arrows scales linearly with the velocity magnitude. In the lower left corner, the length corresponding to 10⁵ and 2 × 10⁵ cm s⁻¹ is shown.