Saturation levels for the ram pressure at 1 AU (upper panel) and reduction in a planet’s magnetospheric standoff distance that this would lead to relative to the standoff distance that the magnetosphere would have in the current slow solar wind (lower panel). The ram pressure values are given in units of the ram pressure of the current slow solar wind at 1 AU. As in Fig. 10, the dot-dashed lines correspond to the predictions of Model A and the dashed lines correspond to the predictions of Model B.