Planck 2015 results
Free Access

Fig. 22


Fractional difference between the true and recovered polarized flux densities, from top to bottom, for the 100353 GHz FFP8 simulations. Left (red): PCCS2. Right (green): PCCS2E. Here the fractional difference is defined as recovered minus true divided by the true value. These are the significantly polarized sources, as found by the common method, and the uncertainties associated with the best-fit estimates are ±3σ error bars. Eddington-type bias is seen at lower polarized flux densities.

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