Dirty beam (top), continuum (center), and line maps (bottom) in band 8 (left) and 7 (right) produced by the ALMA pipeline, without any cleaning applied (“dirty” images). Line maps are continuum-subtracted and were produced by summing the flux in a 800 km s⁻¹ velocity window centered on the [C II] mean velocity. The half-intensity area of the corresponding dirty beams are shown in the bottom-right corner of each panel. Contours shown are 3σ (dotted line) and 10σ (solid line).