Simulated all-sky maps of the 511 keV intensity distribution (in ph cm^-2 s^-1 sr^-1) for all nucleosynthesis positrons, with an SN Ia escape fraction of 5% for ⁵⁶Ni positrons, and for the three halo GMF configurations. From top to bottom, the maps correspond to no halo field, the dipole field, and the X-shape field. The sky maps have been put on the same intensity logarithmic scale.