Understanding the relationship between T and V_turb. The top left panel shows the quality of fits to the Ca II K profile, while the panel to the right shows the T stratification. The bottom left panel shows the V_LOS stratification and the panel to the right shows the value of the V_turb used to invert the selected profile. The large panel on the right shows the T at log τ₅₀₀ =−4.2 as a function of V_turb. The observed (dashed) and fitted (solid) Ca II K profile (the Ca II K profile shown in right panel of Fig. B.2 at t = 57.8 s) is shown in black. The T, V_LOS, and V_turb stratification inferred using inversions (main text, V_turb≃0) are also shown in black. The yellow, orange, red, and blue colors represent the experiments for the V_turb values 0, 3, 6, and 9 km s⁻¹, respectively.