c      Ryu & Jones, Fig. 3b
c
 $rpcon     rhoL=1.0, pL=1.0, vxL=-1.0, vyL=0.0, vzL=0.0
          , byL=1.0, bzL=0.0, bx0=0.0
          , rhoR=1.0, pR=1.0, vxR=1.0, vyR=0.0, vzR=0.0
          , byR=1.0, bzR=0.0
          , psi0=4*0.1, tag='3b', aspect=0.9
          , phdr="Ryu & Jones (1995), Figure 3b", iftr=1               $
