Regions with high positive residuals, superimposed on the SPIRE 250 μm map at the original resolution. For each object detected by sextractor, isophotal ellipses are shown (see Table 3). White contours correspond to regions masked during the emissivity determination. Green circles (diameter = 2 FWHM) show the VCC galaxies detected by Auld et al. (2013). The size of the R1 panel is 2° × 2°, 1° × 1° for all the others.