First panel: fraction of realizations for which the planet amplitude after correction differs by more than 50% (black) and 10% (green) from the theoretical value. The red curve shows the 50% curve for the signal +planet+noise, i.e., what would be obtained with a perfect correction. Second panel: same, but for 2 M_Earth. Third panel: same, but for 5 M_Earth (dotted line at the zero level). Fourth panel: same, but for 10 M_Earth (dotted line at the zero level).