Example of merger evolution. The different panels report the stellar surface density (Σ_⋆) maps at various evolutionary stages for progenitors with a M₁/M₂ ≃ 10 (profile in Fig. 1) and the merger setup in Fig. 2. The bottom right panel is a zoom-in on the virialized post-merger galaxy, and the three dashed circles have radii of one, three, and five half-mass radii. After the merging, the resulting fraction of stars in the outskirts is f₅ ∼ 5.5%.