Radial profiles in spherical shells of the merger remnants at the end of the simulations (6000 s). The panels show cumulative mass (top left), mass fraction of the material that originates from the white dwarf that eventually dominates the centre of the remnant, that is the more massive white dwarf for the unequal-mass merger (top centre), cumulative angular momentum (top right), cumulative magnetic energy (bottom left), plasma beta (bottom centre), and specific internal, magnetic plus kinetic, and potential energy (bottom right). Most of the magnetic energy sits in a relatively small shell between 10⁻² R_⊙ < R_3D < 10⁻¹ R_⊙. For the unequal-mass merger this is the region just outside the inert core of the initial primary white dwarf. At larger radii the magnetic pressure is almost comparable to the thermal pressure.