Fig. 1

a) [CII] line profile in a single spectral scan obtained during the observation of RCW 38 with the balloon-borne FPS100. b) [CII] line map of an area of about 30′ × 15′ around RCW38. The color levels are given in units of erg s-1 cm-2 sr-1. The contours are drawn with linearly spaced 10 levels from 2.1 × 10-4 to 3.4 × 10-3 erg s-1 cm-2 sr-1.
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