Planck 2018 CMB angular power spectra. The data are compared with the base-ΛCDM best fit to the Planck TT,TE,EE+lowE+lensing data (blue curves). For each panel we also show the residuals with respect to this baseline best fit. Plotted are 𝒟ℓ = ℓ(ℓ + 1)Cℓ/(2π) for TT and TE, Cℓ for EE, and for lensing. For TT, TE, and EE, the multipole range 2 ≤ ℓ ≤ 29 shows the power spectra from Commander (TT) and SimAll (TE, EE), while at ℓ ≥ 30 we display the co-added frequency spectra computed from the Plik cross-half-mission likelihood, with foreground and other nuisance parameters fixed to their best-fit values in the base-ΛCDM cosmology. For the Planck lensing potential angular power spectrum, we show the conservative (orange dots; used in the likelihood) and aggressive (grey dots) cases. Note some of the different horizontal and vertical scales on either side of ℓ = 30 for the temperature and polarization spectra and residuals.
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