Fig. 1
Comparison of evolution timescales of semi-major axis τa (blue), eccentricity τe (orange), and inclination τi (green) for a planet at 3.16 au with the circular and coplanar orbit in Disc 6. Solid and dashed blue lines are from Eqs. (8) and (3), respectively. The vertical black dashed line indicates where migration timescale takes the minimum value (Eq. (10)).
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