Fig. A.1

Scale height of silicate dust in a unit of that of the gas (top panels) and midplane dust-to-gas ratio (bottom panels) for different models of Hd (Case of Fp/g = 0.3 and τs,p = 0.1 at 3 au). Here, Drift-BKR and Diff-BKR for pebbles are neglected, whereas Drift-BKR and Diff-BKR (K = 0 or 1) for silicate dust are included. Left two panels: cases of αacc = 10−2 and αDr = αDz = 10−4 with K = 0 or 1, respectively. Right two panels: cases of αacc = 10−2 and αDr = αDz = 10−2 with K = 0 or 1, respectively. The gray lines are the case of Ida & Guillot (2016). The blue lines are the case of Schoonenberg & Ormel (2017). The red lines are the case of Hyodo et al. (2019) and the results show runaway pile-up when αacc = 10−2 and αDr = αDz = 10−4 with K = 1. The black lines are the case of this work (Eq. (36)). In the cases of the gray lines (i.e., Ida & Guillot 2016), pile-ups occur in a runaway fashion for the left two panels, and the time-evolutions are shown for t = 1 × 104 yr, t = 5 × 104 yr, and t = 1.5 × 105 yr. The other cases reach a steady-state within t = 5 × 105 yr. Here, the recycling of water vapor and silicate dust onto pebbles are not included to focus on the different models of Hd.
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