Planetary mass (top) and the Mach number (bottom) as a function of the orbital radius. For the conversion, we assumed a typical steady accretion disk model with a dimensionless viscous alpha parameter (Shakura & Sunyaev 1973), α_acc, including viscous heating and stellar irradiation (e.g., Ida et al. 2016). In this model, the aspect ratio is given by h = max(0.027(a/1 au)^1/20, 0.024 (a/1 au)^2/7), where a solar-mass star, a solar luminosity, the typical accretion rate of classical T Tauri stars, 10⁻⁸ M_⊙ yr⁻¹, and α_acc = 10⁻³ were assumed (Appendix A).