Density (top panels) and magnetic field (bottom panels) are shown in the color bar for two models: WD1 (M = 1.83 M_⊙, toroidal field; left panels); and WD2 (M = 1.42 M_⊙, poloidal field; right panels). The isocontour lines are drawn for density, toroidal magnetic field (having magnetic field perpendicular to the plane of the paper) and the poloidal magnetic field lines (with arrow). The detailed properties of those WDs are mentioned in Table 1.