Network of filaments, which interact at the center of the G353.41 protocluster. First-moment (panel a) and second-moment (panel b) 12 m array images of the N₂H⁺ (1-0) isolated hyperfine satellite, corresponding to the centroid velocity and line width, respectively. The 1.3 mm continuum emission is overlaid in (a) in black contours, which are 4, 20, 40, 80, and 160 in units of σ = 0.3 mJy beam⁻¹. Red ellipses in b denote the ALMA-IMF core locations. Ellipses in the lower-left corners represent the angular resolutions of the N₂H⁺ (1–0) in a and 1.3 mm continuum images in b.