Comparison of reconstructions over the same high-L multipole range on the same simulated map, using different fiducial model assumptions. The blue points use a fiducial model, set of simulations, and estimator ingredients based on the FFP10 input cosmology. The orange points use a cosmology with ΩK ≃ −0.04, where the lensing power spectrum is higher by 10–20% (black line), and the CMB spectra differ by roughly 2% at high ℓ. The linear corrections to the likelihood account for the differences in fiducial model, and are mostly important at high-L in this case; they are effective (green) at bringing the reconstructions with the different fiducial models into good agreement.
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