Optical depth (given in log₁₀-space) grids for a range of beam radii (assuming circular beams) and turbulent line widths (∆V) for SO₂ J=6_4,2−6_3,3 (at T_rot=55 K), CH₃OH 7=13₋₁−13₀ (at T_rot=150 K, accounting for the underestimation of the temperature due to sub-thermal excitation), and H₂CO J=5_1,5−4_1,4 (at T_rot=150 K and T_rot=350 K). The contour lines indicate values of τ=1, 10, and 100. The dotted black line indicates the radial FWHM of the dust trap (FWHM_dust ≃ 26.5 au), found using the high-resolution observations of Yang et al. (2023). The vertical dashed line indicates a turbulent line width of ∆V_line=0.2 km s⁻¹, the lower value used in our analysis.