HZ10 HST, ALMA Band 9, 8, and 7, [CII], and Band 6 morphologies in cutouts of 1.3′′ × 2.2′′. Panels A, B, and C contain the WFC3 F105W, F125W, and F160W images, respectively, in grey scale. The black contours in the three panels are the [0.9, 1.2, 2.1] × 10⁻²¹ erg s⁻¹ cm⁻² Å−1 levels of the F105W, F125W, and F160W filters. The blue-dashed and red-solid contours correspond to [3σ, 4σ, 5σ] and [6σ, 12σ, 18σ] levels for the 77 μm continuum and [CII] integrated intensity, respectively. From D to H: Panels include the 77 μm ALMA continuum, 110 μm ALMA continuum, 158 μm ALMA continuum, and 158 μm [CII], and 198 μm ALMA continuum images, respectively. Contours levels in panels D and G are the same as in panel A, B, and C, for 77 μm continuum, and [CII] integrated intensity, respectively. While blue-solid contours in panels E and H [3σ, 4σ, 5σ] levels for 110 μm and 198 μm ALMA continuum maps, respectively, the white-solid contours in panel G are the [6σ, 4σ, 5σ] levels for the 158 μm ALMA continuum maps. Finally, while green crosses in panel B are the centers of the Seérsic profiles computed for the three sources (e.g., HZ10-C, HZ10-W, and “the bridge”) analysed in this work (see Sect. 3.2), the green circles correspond to the apertures used to perform the angular resolved analysis (see Sect. 4.2 for more details).