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Fig. 4

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Noise residual full-sky power spectra with various internal resolutions (nside = 64, 128, 256, 512, 1024) and neglecting polarization in the offset determination. Residual maps are at nside = 1024. Spectra are smoothed over five multipoles. Signal spectra are plotted in red. As a reference, we also plot the CMB WMAP-5yr fiducial model (black). The horizontal, dashed lines show the predicted noise level. From left to right: temperature, E-mode, and B-mode.

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