Spatial distribution of magnetic field components and current density on the same integration surface as in Figure B.1. Panels (a), (b), and (c) show B_r, B_θ, and B_ϕ, respectively. The white contours represent cross sections of constant $\mathit{s}\cdot {\hat{\mathit{c}}}_A$, while the black contours denote the region where s_r = −1 × 10⁻⁴ in code units. Panel (d) shows the radial current density J_r, with strong current concentrations corresponding to the Alfvén wings.