Table 9
Parameter best-fit values and 68% confidence levels for the base ΛCDM cosmology, computed from the Planck CMB power spectra, in combination with the CMB lensing likelihood (“lensing”) and a compilation of external data sets (“ext”).
| PlanckTT, TE, EE+ | ||
| Parameter | PlanckTT+lowP+lensing | lowP+lensing+ext |
|
|
||
| Ωbh2 ............ | 0.02226 ± 0.00023 | 0.02230 ± 0.00014 |
| Ωch2 ............ | 0.1186 ± 0.0020 | 0.1188 ± 0.0010 |
| 100θMC ............ | 1.04103 ± 0.00046 | 1.04093 ± 0.00030 |
| τ ........................ | 0.066 ± 0.016 | 0.066 ± 0.012 |
| ln(1010As) ............ | 3.062 ± 0.029 | 3.064 ± 0.023 |
| n s ............ | 0.9677 ± 0.0060 | 0.9667 ± 0.0040 |
| H 0 ............ | 67.8 ± 0.9 | 67.74 ± 0.46 |
| ΩΛ ............ | 0.692 ± 0.012 | 0.6911 ± 0.0062 |
| Ωb ............ | 0.0484 ± 0.0010 | 0.04860 ± 0.00051 |
| Ωc ............ | 0.258 ± 0.011 | 0.2589 ± 0.0057 |
| Ωm ............ | 0.308 ± 0.012 | 0.3089 ± 0.0062 |
| Ωmh2 ............ | 0.1415 ± 0.0019 | 0.14170 ± 0.00097 |
| Ωmh3 ............ | 0.09591 ± 0.00045 | 0.09598 ± 0.00029 |
| σ 8 ............ | 0.815 ± 0.009 | 0.8159 ± 0.0086 |
 ............ |
0.4521 ± 0.0088 | 0.4535 ± 0.0059 |
| Age [Gyr] | 13.799 ± 0.038 | 13.799 ± 0.021 |
| r drag ............ | 147.60 ± 0.43 | 147.50 ± 0.24 |
| k eq ............ | 0.01027 ± 0.00014 | 0.010288 ± 0.000071 |
Notes. While we see no evidence that systematics in the high-ℓ polarization are biasing parameters in the base ΛCDM model, a conservative choice would be to take the parameters listed in Col. 2.
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