Top panels: H₂ column density (left) and dust temperature (right) maps from Herschel (Didelon et al. 2015). Middle panels: ¹³CO (left) and C¹⁸O (right) column density maps. Bottom panels: velocity centroid for ¹³CO (left) and C¹⁸O (right). The “skeleton” of identified filaments are marked with solid white, black, or yellow lines. The black and white circles correspond to the radii at 200′′, 250′′, and 300′′ (transition between thehub and the filaments, see Fig. 5). The white circles in the top right panel shows sources identified bySokol et al. (2019); the colored symbols show the sources identified by Rayner et al. (2017).