Fig. 9
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Models with grain growth within the sublimation zone. In these models, the maximum grain size is 100 μm outside of the sublimation zone (i.e., in regions where T > 300 K for the upper panels and T > 500 K for the lower panels) and 1000 μm within it, as well as a mixture of silicates, graphites, and amorphous carbon (80% of the carbon).
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