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Fig. 8

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Step-by-step construction of the fit distribution for the following parameters: Σg = 20 g cm-2, Σd = 0.2 g cm-2, αt = 1 × 10-4, uf = 1 m s-1, ξ = 1.833, T = 50 K, ρs = 1.6 g cm-3. The upper left panel shows the distribution after step 5: each interval obeys a different power-law, the distribution is continuous apart from a jump at a12. The upper right panel displays the fit including an increase at the upper end, according to step 6. The bump caused by cratering (cf. Eq. (53)) is shown in the bottom left panel while the bottom right panel compares the final fit distribution (solid curve) to the simulation result (dashed curve). The vertical lines correspond to the regime boundaries: aBT (solid), asett (dash-dotted), a12 (dashed) and aP (dotted).

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