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Table 4

Parameters that we varied to test the charging behavior of grains.

amin [μm] dust to gas ζ [s−1] Mdisk [Μ⊙] Τd [Κ]
0.05 0.0001 10−16 0.0001 100
0.5 0.001 10−17 0.001 200
5 0.01 10−18 0.01 300
50 0.1 10−19 0.1 413
500 1 5 × 10−20 1 500
10−21
10−22 1800

Notes. The bold values are the default values of our standard simulation.

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