Fig. 7.

Top row: CH⁺ 120 µm compared with H₂ v=1-0 S(1) and [CII] 158 µm. CH⁺ 120 µm contours overlaid on the H₂ map (left) and [CII] map (right). Zoom: map of vibrationally excited H₂ convolved to the spatial resolution of CH⁺ J=3-2 map including contours of CH⁺ J=3-2. Bottom row: OH 84 µm compared with H₂ v=1-0 S(1) and [OI] 145 µm. OH 84 µm contours overlaid on the H₂ map (left) and [OI] map (right). All contours are with contour steps of 20 % of the peak emission, except for the zoomed picture where the contours are with contour steps of 10%. The maps are in units of erg s⁻¹ cm⁻² sr⁻¹. The H₂ v=1-0 S(1) data taken from (Walmsley et al. 2000, big map) and (van der Werf et al. 1996, zoomed map). The [CII] 158 µm and [OI] 145 µm data were taken from (Bernard-Salas et al. 2012).