Planck 2013 results
Free Access

Fig. 8


Cross spectra corrected for the beam and effective calibration, together with the mean power spectrum. Top: the 10 cross spectra at 143 GHz. Bottom: the 15 cross spectra at 217 GHz, with SWB × SWB spectra (magenta), SWB × 217-ds1 (red), SWB × 217-ds2 (green), 217-ds1 × 217-ds2 (purple). The SWB detector sets at 217 GHz are 217-ds3, 217-ds4, 217-ds5 and 217-ds6. The power spectra are distinguishable only at high multipoles where the data become noise dominated. The lower panels show the dispersion of the cross spectra around the mean, together with a ± 0.2% calibration error (orange line in the lower panels).

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