Hermean magnetic field lines with the intensity imprinted on the field lines by a color scale for the reference case A) and simulation Bx3 C). Magnetic field intensity at the frontal plane X = 0.3R_M. SW stream lines (green). Inflow/outflow regions on the planet surface (blue/red). Polar plot of the density distribution (displaced 0.1R_M in Y direction) for the reference case B) and simulation Bx3 D). Dashed pink curve indicates the surface plotted in Figs. 3 and 4.