Fig. 6. Gas pressure P and magnetic pressure as functions of distance for model 1. The shock is set at 80 AU. The polytropic pressure (dotted line) is shown for comparison with P obtained from a nonpolytropic model.
![[FIGURE]](img109.gif)
![[FORMULA]](img103.gif)
as functions of distance for model 1. The shock is set at 80 AU. The polytropic pressure (dotted line) is shown for comparison with P obtained from a nonpolytropic model.