Radial surface density profile (top panel), temperature profile (middle panel), and migration map (bottom) as function of the planet mass (assuming zero eccentricity and inclination), for the same disc presented in Fig. 3 at t = 1 Myr. The value plotted in the bottom panel is the relative migration rate 1∕τ_a = −v_planet∕a_planet; blue regions indicate inward migration, red regions outward migration. For both directions, the locations in bright colours are where migration is inefficient while dark tones indicate efficient migration. The dashed black line shows the boundary between type I (below) and type II (above) migration regimes.