Initial conditions in the lab frame for model FVRB. The axes are in units of 0.01 AU. Logarithmic density contours (in units of g cm^-3) are shown in the x-y plane (z = 0; left panel) and in the x-z plane (y = 0; right panels). The top right panel is focused on the star and the bottom right on the planet. Solid lines represent the magnetic field, arrows show the velocity field (with the longest one corresponding to ~290 km s^-1), dashed lines the poloidal Alfvén surface (), and dotted lines the poloidal sonic surface (). The cross in the bottom right panel denotes the location of the L₁ point.