Median radial Herschel column density profiles for the northeastern (a) and southwestern (b) side of the NGC 2024S filament. The defined crest of the filament is shown in Fig. B.1. The dashed black curves indicate the angular resolution of the Herschel column density map (18″.2). The dashed curves show the best-fit Plummer mode. The yellow bars show the dispersion (±1σ) of the distribution of the radial profile along the filament. The area affected by the secondary component seen in NOEMA H¹³CO⁺ is avoided to produce the median radial profile for the southwestern side of the NGC 2024S filament (see Sect. 3.1.3).