Physical properties along streamlines. (a) H₂ abundance map (same as Figure 2) with selected streamlines shown in gray. Three representative streamlines are marked in blue, red, and cyan. (b-f) Profiles of cylindrical radius, densities, temperature, poloidal velocity, and H₂ abundance along the three streamlines, using consistent color coding. The horizontal axis indicates the distance along each streamline, with s = 0 defined at the base. In panel c, solid and dashed lines show H2 and hydrogen nucleus densities, respectively.