(Left) Example of face-on surface density distribution of dust in a planet’s corotating frame, with a K4-type star located at the origin. The white dot indicates an Earth-like planet placed at the inner boundary of the CHZ. A total of 100 dust particles with a size of 50 μm are used. The resonant ring structure is visible around the planet’s position. The color scale indicates surface density in arbitrary units, with lighter colors corresponding to higher densities. (Right) Azimuthally averaged surface density of dust in arbitrary normalized units, based on the distribution in the left panel. The background disk appears as a nearly constant plateau, while the resonant ring structure shows a density enhancement.