Distributions of the magnetic-field strength ∣B∣ on the z = 0 plane for all cases considered (different rows) at times t = t_sh, t_sh,1/2, and t − t_sh = 2 ms (different columns). Note that all figures have been rotated so that the maxima of the rest-mass density of the two NSs at t = t_sh are on the y = 0 line (for the DU binary, only the density maximum of the aligned-spinning star is on the y = 0 line). Each panel reports data covered by the finest resolution box with Δx ≃ 35 m. The arrows in the first column indicate the spin-alignment of each star.