Kinetic, magnetic, and thermal energy fluxes compared to the integrated radiative loss in a CJ-type shock propagating at 10 km s⁻¹ in a medium of density 10⁴ cm⁻³ and illuminated by a strong radiation field G₀ = 10⁴. All the otherparameters are set to their standard values (see Table 1), and the standard value of the buffer visual extinction is set to . The light grey line corresponds to the total conserved energy flux. The red point highlights the criterion used to separate the shock from the post-shock region (Eq. (29)).