Ionization points colored by energy channels for Runs 1, 2, and 3 (left to right). The color code is the same as in Fig. 4. Surfaces for M_ms = 2 (red) and cometopause (purple) are included in the figures for context. The visible portion of the surfaces is constrained to Y = ±500 km. In Run 1 a secondary “cometopause” occurs around Z ≈ [2000, 3000] km, showing a thin plasma region, entirely within the Y = ±500 km extent, which is dominated by cometary pickup ions embedded in the solar wind.