Scatter plot of the inner period of the planet and the period ratio of the outer-to-inner planet. The left and right panel present the results of Kepler 170 and Kepler 180, repsectively. The red star represents the observed data and other symbols give the results of numerical simulations. Symbols correspond to stellar magnetic field strengths B⋆ where B⋆ equals 0.3 kG (triangle), 1 kG (square) and 3 kG (circle). Colour corresponds to the disk dispersal timescale (τd) where purple, green, and orange mean 103, 104 and 105 yr, respectively. The sizes of the symbols represent the disk accretion rate at the onset of disk dispersal (Ṁg0), ranging from 10-9 (small), 3 × 10-9, 10-8, 3 × 10-8 to 10-7M⊙ yr-1 (large).
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