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Fig. 4


Spitzer-IRAC 8 μm emission with contours of the 12CO J = 3−2 integrated between 20 and 35 km s-1 (in red), and between −10 and 7 km s-1 (in blue). The contour levels are 13, 17, and 25 K km s-1 for the red-shifted lobe, and 6.5, 7.5, and 8 K km s-1 for the blue-shifted one. The beam of the molecular observations is included in the bottom-right corner.

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