Top panels: distribution of toroidal magnetic field in vertical and horizontal slices through the disk centre for models: S200 (left panel) and S500 (right panel). Red represents regions with positive toroidal magnetic field, blue with negative, while unmagnetized regions are white. To enhance weaker magnetic field structures in the outer galactic disk (e.g., magnetic arms), the colour scale in the magnetic field maps is saturated. Bottom panels: face-on and edge-on polarization maps for the selected time steps for two models: S200 and S500. Polarized intensity (contours) and polarization angles (dashes) are superimposed onto the column density plots.