HCN/HNC line ratio from this work as a function of kinetic gas temperature measurements at 4″ resolution from den Brok et al. (2025). We separate pixels in the center (r < 500 pc, red points) and disk (r > 500 pc, blue points), and provide binned estimates for the full FoV (black line), center, and disk (red, blue, respectively) in steps of 5K in the range ∼10 − 50 K, suggested by Hacar et al. (2020). We add the fitted relation from Hacar et al. (2020) (dashed green line).