Radial profiles of column density Σ and rotational velocity vrot for all simulations with Rdisk = 100 and t = 1.5 Tdisk. The runs with Qinit = 3 approximately follow the initially chosen density distribution. The Qinit = 1 disks show peaks at radii with distinct clumps or spiral structure (compare Figs. 5 and 6). The velocity profiles show only minor deviations from the general trend, which are due to the turbulent velocity in the most unstable regions.
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