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Fig. 4


Column density PDF of NGC 6334 produced without the 70 μm band. The x-axis labelling is in column density at the bottom x-axis and in ln(N/ ⟨ N ⟩ ) at the top x-axis. The labelling of the y-axis is a probability on the left and number of pixels per log bin on the right. The green curve indicates the best lognormal fit PDF, and the red line is the best-fit power-law fit to the high-density tail. In the panel the deviation point of the PDF from lognormal (AV), the width σ, the slope s, and the exponent α are given.

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