Comparison of the flux densities of the PHZ source candidates (at 8′) computed on the cleaned maps obtained using the Planck 143-GHz map () or the SMICA CMB component map () as a CMB template during the cleaning processing. The blue line provides the 1:1 reference. The dashed line gives the expected attenuation coefficients of 10% at 353 GHz and 40% at 217 GHz due to extragalactic foreground contamination of the CMB template.