Illustration of shock parameter space. Top: various shock type regimes as a function of transverse magnetic field strength and shock velocity for G₀ = 0 and preshock density of 10⁴ cm⁻³ (adapted from Fig. 3, Godard et al. 2019). Here a field strength of 10 µG corresponds to b = 0.1, and 10³ µG is b = 10. The blue region is for J-type shocks where the velocity exceeds the ion-magnetosonic velocity (c_ims). Above 30 km s⁻¹ the shocks start producing UV-photons and become self-irradiated, which is not included in the current grid (Lehmann et al. 2022). The red, green and orange areas are for CJ, C*, and C-type shocks, respectively; these shocks fall between the ion- and neutral-magnetosonic velocities (c_ims and c_nms, where the latter is calculated in a similar manner to c_ims, Eq. (2), but with the neutral mass density). Models A and B are marked. Middle: gas temperature profiles for models A and B. Bottom: velocity profiles for models A and B. The dotted line shows the local sound speed, c_s, the dashed is for the ion speed, υ_i, and the full is for the neutral speed, υ_n. All velocities are in the reference frame of the shock, and the line colors are for the same b parameters as above. The difference between the left- and right-hand sides of the middle and bottom panels is that the left panel is on a linear-linear scale, while the right is on a log-log scale.