c      Ryu & Jones, Fig. 4a
c
 $rpcon     rhoL=1.0, pL=1.0, vxL=0.0, vyL=0.0, vzL=0.0
          , byL=1.0, bzL=0.0, bx0=1.0
          , rhoR=0.2, pR=0.1, vxR=0.0, vyR=0.0, vzR=0.0
          , byR=0.0, bzR=0.0
          , psi0=4*0.1, tag='4a', aspect=0.9
          , phdr="Ryu & Jones (1995), Figure 4a", iftr=1               $
