Two-dimensional snapshots of the evolution of the disk surface density with an embedded planet. The snapshots correspond to the times 449, 729, 2807, and 7414 years. The planet, shown as the gray dot with the Roche radius, was embedded in the disk at an initial distance of r = 1.75 AU. The dashed gray line around the central binary shows the approximate boundary of stability for planetary orbits. A movie of the simulation shown here can be found online.