Planck 2013 results
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Fig. 33


Calibration (“Calib”) and beam uncertainty mode (“EM”) determination for all detectors (or detector sets) within each frequency band. The grey areas show the 1σ priors on each beam parameter (without assuming a prior for gain calibration; the first detector in each series is used as a fixed reference). The error bars show the 1σ posteriors. The bottom right panel shows the variations of the power spectra in the primary CMB channels when applying the recalibration and beam uncertainty corrections described in the text. Altogether, this leads to variations smaller than 0.4% at all ≲ 2500. Note that the shape variations with are much smaller (a fractional variation less than about 5 × 10-4).

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