Azimuthally averaged radial distribution of the disk eccentricity at the same times as in Figs. 2 and 5. The filled circles show the planet’s location in each simulation. The dashed curves indicate the gas-depleted cavity region, where the calculation of the gas eccentricity is strongly affected by the reset in the gas density. The Jupiter-mass planet excites a large eccentricity in its outer disk, in contrast to the three less massive planets.