Erosive mass loss of pebbles that enter the envelope of a growing planet at its Bondi radius (r_B). 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 R_erosion (Eq. (7)) where collisions with dust grains switch from causing mass loss via erosion to sticking (sweep-up).