FIFI-LS contour maps of the [O I] lines at 63.2 and 145.5 μm, the [CII] line at 157.7 μm, the CO lines with J_up = 14, 16, 17 at 186, 163, and 153 μm respectively (white contours) on top of the continuum emission at 160 μm (at 70 μm for the [OI] line at 63.2 μm) from Herschel/PACS. The white contours show line emission at 25%, 50%, 75%, and 95% of the corresponding line emission peak. The “+” and “×” signs show the positions of the dense cores A and B.