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Fig. 2

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Erosive mass loss of pebbles that enter the envelope of a growing planet at its Bondi radius (rB). The parameters of the planet are shown in Table 1. The three lines correspond to initial pebble entry sizes of 0.1 cm (dotted), 1 cm (dashed) and 10 cm (solid). Due to the positive feedback of erosive mass-loss on the dust abundance, the pebbles rapidly converge to the size Rerosion (Eq. (7)) where collisions with dust grains switch from causing mass loss via erosion to sticking (sweep-up).

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