Normalized type I and type II migration rate for three different stellar masses and disks. In the top panel, a disk with a total mass of 0.02 M_⊙ around a solar mass star after an evolution of 100 kyr is displayed; the central panel shows the same disk at the same time, but the stellar mass is reduced to 0.1 M_⊙ ; and the normalized migration rates for a disk with ten times less mass around a 0.1 M_⊙ star can be seen in the bottom panel. Regions with most strongest colors (blue or red) are regions where migration is fastest. With scaled disk mass, the outward migration zones (red) move to lower planet masses and closer orbits. This generally causes an earlier inward migration.