Model B: detailed color maps of the density (upper panel), radial velocity (middle panel), and temperature (lower panel) structure up to the distance 50 R_⋆ at time t ≈ 180 h since shock emergence, with the same numerical resolution as in Fig. 8. Contours denote the densities ρ = 10⁻⁷, 10⁻⁶, 10⁻⁵, and 10⁻⁴ kg m⁻³, the velocities 2500, 3000, 3500, and 4000 km s⁻¹, and the temperatures 7 × 10⁴, 8 × 10⁴, 10⁵, and 5 × 10⁵ K.