Fig. A.1

Evolution of the gravitational torque Γtot
acting on the planet during introduction and relaxation (
here denotes time during those stages). Γi
is the contribution of the inner disk (up to r = rp = 1),
Γo of the outer disk, and Γtot = Γi + Γo. A vertical line indicates the end of the planet’s introduction and starting date of the disk’s relaxation.
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