Resulting ζ₂ maps obtained with Eq. (1) in runs 1 to 4. The run ID is reported in the top-left corner, and the key parameters are included at the top of each panel. Run 2 is taken as a reference throughout the rest of this work. The white contours show the 50, 70, and 90% of the N(H₂) peaks, which are: 6.67 × 10²² cm⁻² (core in single-dish like analysis at 100 kyr); 6.86 × 10²² cm⁻² (core in single-dish-like analysis at 50 kyr); 2.51 × 10²² cm⁻² (core in ALMAlike analysis at 100 kyr). The beam size and scalebar are shown in the bottom corners of each panel. Note that we show a zoom-in of the central 0.15 pc.