Migration history (as in Fig. 3) for the PDS 70 models. A migration jump occurs for both equations of state in the case of a high-surface-density model (PDS70 ISO and PDS70 IRR). The model with a fifth of the surface density (PDS70 IRR M/5) shows only very moderate outward migration. The left vertical dotted line shows the time of planet release. The right vertical dotted line shows the time of the synthetic observations shown in Fig. 12.