Fig. 3.
Power spectra of the CIB and 10% of the dust residual at 353 GHz (left panel) and 3000 GHz (right panel). The dust power spectra are computed over 20, 40, 60, 70, and 80% of the sky. The residual dust power spectra dominate the CIB at the low multipoles of interest for the ISW signal. As a consequence, the S/N decreases dramatically compared to the ideal dust-free case.
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