Planck 2018 results
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Fig. 21.


Base-ΛCDM 68% and 95% parameter constraint contours from the CMB power spectra using  ≤ 801 (blue), compared to  ≥ 802 (red). All results use the plik_lite Planck likelihood, and also include the low- SimAll “lowE” likelihood to constrain the optical depth τ; the Commander likelihood is used for temperature multipoles  <  30. The lower triangle contains the Planck temperature likelihoods, which show a moderate tension between high and low multipoles; however, they intersect in a region of parameter space consistent with the nearly-independent constraint from EE+lensing combined with a conservative prior Ωbh2 = 0.0222 ± 0.0005, motivated by element-abundance observations (green). The upper triangle shows the equivalent results from Planck TT,TE,EE+lowE at low and high multipoles. The full combined result from Planck TT,TE,EE+lowE is shown as the navy contours. The unfilled grey contours show the result for multipoles 30 ≤  ≤ 801 (that is, removing the low- Commander likelihood that pulls parameters to give lower temperature power, due to the dip below  ≈ 30). The diagonal plots are the marginalized parameter constraints, where results corresponding to the lower triangle are shown dashed, while the upper triangle are the solid curves.

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