Radial torque distribution scaled by Γ0 for the Visc1 (FP) model. The green and red lines represent the torque distribution before the vortex was developed and at the end of the simulation. The green area exhibits the analytically calculated horseshoe region for our planet in an axisymmetric disc. The orange area shows the larger horseshoe width obtained from Fig. 12. The position of the planet is also marked by a black dot. We note that we only plotted the torque from the disc and thus the integral of the red curve, which is non-zero, equal to −Γ⋆.
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