Structure of the jet termination shock in the final state of the fiducial simulation at ω_pit = 2500. From left to right, this figure shows the following: the plasma density n/n₀, the out-of-plane magnetic field component (B_y/B₀), the axial plasma bulk velocity (V_z/c) and streamlines (solid contour lines with arrows), as well as the mean individual ion Lorentz factor ⟨γ_i⟩. The lower panels show the radial profile of each quantity across the large plasma cavity at z ≈ 95R_j (blue solid line), which can be compared with the upstream solution (red dashed line).