Open Access

Fig. 4

image

Observed radial column density (and flux density) profile (black curve) of the RCW 120 shell. The Gaussian fit (blue dotted curve) and the Plummer fit (red dashed curve) are shown. The yellow error bars show the ± 1σ dispersion of the distribution of radial intensity profile observed along the filament crest (same color coding for the other figures).

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