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Fig. A.2
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Time evolution of the minimum dust surface density for different planetary masses. We fixed the Stokes number and the Mach number St = 10−3 and ℳhw = 0.03. We set αdiff = 10−4 in panel a and αdiff = 10−5 in panel b. The square symbols denote the global minimum of Σd,min(t). The horizontal dashed lines mark Σcrit (Eq. 21).
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