Magnetic field components based on Eq. (3)for a cut through the x–z plane. Shown are the cases of n = 0.05 (upper four panels) and of n = 0.99 (lower four panels), both for w₀ = w_0,crit. For each case, the panels represent the magnetic field components and the total field strength, all scaled logarithmically. For n = 0.05, the solution falls toward zero rapidly so that the corresponding parts are left blank in the logarithmic plot.