Correlation of [C ii] with Hα, ¹²CO(2–1), H i, [O i] 63 μm, MIPS 24 μm, and PACS 100 μm. The black crosses mark all positions on a 6″ grid. The red triangles correspond to positions in region A, the green squares represent positions in region B, and the cyan filled circles correspond to positions in region C. All these regions are marked in the 24 μm map in Fig. 5. Errorbars corresponding to a 20% error in the plotted quantities along both axes are shown at one representative point in each panel. For [O i] 63 μm, only positions close to the H ii region are used. The blue dashed line in the [C ii]–[O i] scatter plot corresponds to equal intensities of the two tracers.