Description of turbulent dynamics in the interstellar medium: Multifractal microcanonical analysis - II. Sparse filtering of Herschel observation maps and visualization of filamentary structures at different length scales

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Fig. E.3

Visualization of the log of gradient norms on the Herschel observation map of Musca, after noise reduction with p = 1.5, q = −1, λ = 0.1. Although the log of gradient norms enhances the striations, the resulting spectrum, shown in figure E.2, is very different from the one obtained with the correlation measure.

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