Diagram illustrating the three mutually exclusive regions for which independent IR LFs have been defined. The red circle defines the “core” region, which is centered on the cluster A1763 and extends to a radius r500 = 1.34 Mpc. The two almost parallel blue segments delimit the extended over-density of supercluster members outside the core, which we identify with the large-scale “filament” region, discovered in Paper 0. The “outskirts” region is delimited by the green parallelogram, which represents the extent of the 24 μm observations, excluding the core and filament regions. We also show the region corresponding to the Palomar r-band observations (connected dashed black segments). The (brown) contours are isocontours of galaxy number density, linearly spaced, obtained by running an adaptive-kernel technique on the spatial distribution of the 432 non-AGN, IR-emitting supercluster members of the z ∪ zp sample. Positions of these galaxies are indicated by the (black) circles, with sizes proportional to the galaxy sSFRs. Filled (pink) symbols mark the positions of the LIRGs in the z ∪ zp sample, squares for spectroscopically confirmed members, dots for members selected on the basis of their zp.
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