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Fig. 12

image

[C ii] spectra towards the H ii region, averaged over 156 (left) and 187 (right) pixels. The left panel represents the H ii region north of the Horsehead Nebula, the right panel represents the part south of the Horsehead Nebula. For the northern part, we obtain TP = 1.0 K, FWHM = 8.7 km s-1, and vP = 14.1 km s-1; for the southern part, a Gaussian fit yields TP = 0.7 K, FWHM = 5.2 km s-1, and vP = 11.2 km s-1.

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