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Fig. 4

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Histogram of the dust fraction e as a function of the ambipolar and Ohmic heating source terms for the 10 µm (left), 100 µm (middle) and 1 mm grains (right) for the O10A10 model at t = 50 Ω−1. The colors represent the integrated total mass (the color bar is log-scaled). We note that the heating is dominated by ambipolar diffusion for all grain sizes.

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