Fig. 2
Gravitational potential for a thin disk with M = 1 M⊙, ρ0 = 10-15 g/cm3, zgas = 0.05 AU, and varying disk radii in the disk plane. Potential values are normalized to U(0) for r = 1.0 AU. A point-mass potential is plotted for comparison. The disk potential is characterized by a prominent potential minimum located at the disk’s rim especially in compact disks.
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