Shock at the CME flank for the modified resolution simulation run. This figure is similar to Figure 8, but with a modified grid (higher resolution) between 1.1 R_⊙ and 10 R_⊙. Panel (a) shows a simulation snapshot at t = 25 min of the anti-sunward Elsässer variable with annotations describing the viewing angle along 160°, the shock location, the approximate beginning of the CME sheath, and the approximate shock velocity v_shock. Panels (b) and (c) show the density compression and along the viewing angle, respectively. Panels (d) and (e) present the fluid velocity and Alfvén speed along the direction of the background magnetic field.