c      Ryu & Jones, Fig. 5b
c
 $rpcon     rhoL=1.0, pL=1.0, vxL=0.0, vyL=0.0, vzL=0.0
          , byL=1.0, bzL=0.0, bx0=1.3
          , rhoR=0.4, pR=0.4, vxR=0.0, vyR=0.0, vzR=0.0
          , byR=-1.0, bzR=0.0
          , psi0=4*0.1, tag='5b', aspect=0.9
          , phdr="Ryu & Jones (1995), Figure 5b", iftr=1               $
