Temporal evolution of the gravitational torques exerted by the gas onto the planets for the nine runs. The torques are normalized by . The different colors show different planet masses: 10M_⊕ (green), M_s (yellow), M_j (red) and 3M_j (blue). The different line-styles indicate the initial magnetization: β₀ = +∞ (inviscid hydrodynamic run, dotted line), β₀ = 10⁴ (solid line) and β₀ = 10³ (dashed line). The transparent variable curves show the instantaneous torques, on top of which are displayed the torques with a moving average of 10 orbits.