Accretion radius and mass accretion rate for pebble accretion at 10 au. Shown are r_acc (top panel) and ṁ (bottom panel) as a function of planetesimal mass. We compare our prescription (black solid line) to the models developed in Johansen & Lambrechts (2017; JL17, blue dashed line) and Lambrechts et al. (2019; L19, dashed orange line). The vertical dashed line indicates the initial mass of the planetesimals used in Sect. 3.8. The horizontal dashed line (top panel) is the pebble scale-height, which indicates the transition from 3D to 2D accretion.