Line maps, velocity-integrated over 1.2 × FWHM_{[C II]} = 482 km s⁻¹ at the expected frequencies of [C II]_{158 μm}, [N II]_{205 μm}, and [O I]_{146 μm}, and assuming the [C II]_{158 μm} redshift. For each line, we also plot two additional collapsed maps, centered at ± 482 km s⁻¹ away from the line emission. For [O I]_{146 μm}, only one of the adjacent maps is empty, as the emission is at the edge of the band. On the central [C II]_{158 μm} map, we plot the quadrants used for the spatial extension analysis in Section 4.2. The contours are logarithmic ( − 4, − 2, 2, 4, 8, 16, 32)σ (rms).