The eccentricity versus semimajor axis of the asteroids at the end of the main-sequence stage. The left-hand column shows the ν6 secular resonance simulations and the right-hand column shows results of the 2:1 mean-motion resonance simulations. The first row denotes the initial distribution of the belt. The second row shows the final distributions with no inner planet. The third row denotes the final distributions for belts with a |$1\, \rm M_{\oplus }$| inner planet, while the fourth row denotes the final distributions for belts with a |$3\, \rm M_{\oplus }$| inner planet. The colours denote the outcomes of the particles after the white dwarf stage. The outcomes include ejection (yellow), tidal disruption (red), or remaining stable (black).
