Magnetic field lines from the center to the corona. For r > 0.96R_⊙, a potential extrapolation is assumed. This snapshot is taken at the same time as Fig. 9g. The two very transparent spherical shells are set at r = 0.62   R_⊙ and r = R_⊙, we display in them the contours of the non-axisymmetric B_ϕ and total B_r. Magenta denotes the positive radial magnetic field, and yellow denotes the negative radial magnetic field.