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

Open Access

Fig. 14

Noise reduction on Aquila. Top panel: singularity exponents of the Herschel observation of Aquila at 250 μm. Left image: display of the singularity exponents of the raw, unfiltered map. Right image: after noise reduction, p = 1.5, q = −1, λ = 0.1. Bottom panel: zoom on subregion of the filtered image.

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