Variation in the bremsstrahlung (solid blue line) and cyclotron (dotted red line) losses along the column assuming a white dwarf of 0.8 M_⊙, an accretion rate of ṁ = 10 g/cm²/s and ϵ_s = 1.2 (corresponding to a magnetic field of 30.3 MG) at t = 100 s. The abscisses have been normalized to the front shock position (x_s ~ 7.7 × 10⁶ cm).