Spatial distribution of single white dwarfs (top panels) and common proper motion pairs (bottom panels) in the Galactocentric rest frame. Each point is color-coded according to the median total age of the represented star, which is mapped in the color bar on the right. The location of the Sun at (X, Y, Z) = (8.178, 0, 0.025) kpc is marked by a cross. White dwarfs with M + σ_M ≤ 0.52 M_⊙ are plotted as white symbols.