Scale heights in kpc (dark blue) at 146 MHz and magnetic field strengths in μG (red) at different distances x from the galaxy’s centre along the major axis (in kpc). x > 0 corresponds to the north-eastern side of the galaxy and x < 0 to the south-western side. The disk scale heights are shown in the left panel, the halo scale heights in the right panel. The magnetic field strengths are measured from the 1.5 GHz data on the galaxy’s major axis and are identical in all four panels.