Left: Voronoi binning of the selected spaxels within 1″​​.5 from the galaxy center that avoid lensed arcs, quasar images, and the satellite galaxy S. The different colors illustrate the regions for each Voronoi bin in a cartographic manner for easier visualization, with the bin number specified within each bin. We perform the binning with a target S/N ≈ 23 Å⁻¹ for each bin, which results in 41 bins in total. Right: resultant S/N for each Voronoi bin (red points).