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Fig. 2

image

Various gas and dust tracers with [C II] line-integrated intensity (vLSR = −10−20 km s−1) in contours (from white to black: 1.5, 3.5, 7.0, 10.5, 14.0, 20.0, 30.0, 40.0, 50.0, 60.0 × 10−4 erg s−1 cm−2 sr−1): (a) FIR intensity, (b) IRAC 8 μm intensity, (c)IRAM 30 m CO(2–1) intensity, (d) dust optical depth τ160, (e) DSS-2 red-band intensity converted to Hα intensity, (f) [C II]/FIR ratio. All images are convolved to the resolution of the FIR intensity image (36′′). We note that the DSS-2 red band/Hα image (panele) is saturated at I ≃ 250 MJy sr−1.

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