Cumulative distributions of orbital periods for super-Earths (left column) and giant planets (right column). Each row corresponds to a population of young (Region 1, for which P_rot <4.7 days), middle-aged (Region 2, for which 4.7 ≤ P_rot (days) < 20), and old (Region 3, P_rot ≥ 20 d) star-planet systems. In gray: unbiased MMA13 sample. In red: ESPEM distributions with B_p = 0 G. In light blue: ESPEM distributions with B_p = 1 G. In dark blue: ESPEM distributions with B_p = 10 G.