Total line intensity maps (in erg s⁻¹ cm⁻² sr⁻¹ = “cgs”) integrated over the complete line profile. The beam size is indicated in the bottom-right corner of each panel except for H₂, where it is too small to display (0.1″). The cyan triangle shows a position near the Trapezium, where the [O I] 63µm line intensity peaks (Table D.1). The H₂ image refers to the JWST/NIRCam F212N image (McCaughrean & Pearson 2023). The CO J = 10–9 map was obtained with Herschel/HIFI at 20″ resolution (Goicoechea et al. 2019).