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Home All issues Volume 571 (November 2014) A&A, 571 (2014) A16 Full HTML
Planck 2013 results
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Table 2

Cosmological parameter values for the six-parameter base ΛCDM model.

Planck Planck+lensing Planck+WP
Parameter Best fit 68% limits Best fit 68% limits Best fit 68% limits
Ωbh2 ...... 0.022068 0.02207 ± 0.00033 0.022242 0.02217 ± 0.00033 0.022032 0.02205 ± 0.00028
Ωch2 ...... 0.12029 0.1196 ± 0.0031 0.11805 0.1186 ± 0.0031 0.12038 0.1199 ± 0.0027
100θMC ...... 1.04122 1.04132 ± 0.00068 1.04150 1.04141 ± 0.00067 1.04119 1.04131 ± 0.00063
τ ...... 0.0925 0.097 ± 0.038 0.0949 0.089 ± 0.032 0.0925
ns ...... 0.9624 0.9616 ± 0.0094 0.9675 0.9635 ± 0.0094 0.9619 0.9603 ± 0.0073
ln(1010As) ...... 3.098 3.103 ± 0.072 3.098 3.085 ± 0.057 3.0980
ΩΛ ...... 0.6825 0.686 ± 0.020 0.6964 0.693 ± 0.019 0.6817
Ωm ...... 0.3175 0.314 ± 0.020 0.3036 0.307 ± 0.019 0.3183
σ8 ...... 0.8344 0.834 ± 0.027 0.8285 0.823 ± 0.018 0.8347 0.829 ± 0.012
zre ...... 11.35 11.45 11.37 11.1 ± 1.1
H0 ...... 67.11 67.4 ± 1.4 68.14 67.9 ± 1.5 67.04 67.3 ± 1.2
109As ...... 2.215 2.23 ± 0.16 2.215 2.215
Ωmh2 ...... 0.14300 0.1423 ± 0.0029 0.14094 0.1414 ± 0.0029 0.14305 0.1426 ± 0.0025
Ωmh3 ...... 0.09597 0.09590 ± 0.00059 0.09603 0.09593 ± 0.00058 0.09591 0.09589 ± 0.00057
YP ...... 0.247710 0.24771 ± 0.00014 0.247785 0.24775 ± 0.00014 0.247695 0.24770 ± 0.00012
Age/Gyr ...... 13.819 13.813 ± 0.058 13.784 13.796 ± 0.058 13.8242 13.817 ± 0.048
z∗ ...... 1090.43 1090.37 ± 0.65 1090.01 1090.16 ± 0.65 1090.48 1090.43 ± 0.54
r∗ ...... 144.58 144.75 ± 0.66 145.02 144.96 ± 0.66 144.58 144.71 ± 0.60
100θ∗ ...... 1.04139 1.04148 ± 0.00066 1.04164 1.04156 ± 0.00066 1.04136 1.04147 ± 0.00062
zdrag ...... 1059.32 1059.29 ± 0.65 1059.59 1059.43 ± 0.64 1059.25 1059.25 ± 0.58
rdrag ...... 147.34 147.53 ± 0.64 147.74 147.70 ± 0.63 147.36 147.49 ± 0.59
kD ...... 0.14026 0.14007 ± 0.00064 0.13998 0.13996 ± 0.00062 0.14022 0.14009 ± 0.00063
100θD ...... 0.161332 0.16137 ± 0.00037 0.161196 0.16129 ± 0.00036 0.161375 0.16140 ± 0.00034
zeq ...... 3402 3386 ± 69 3352 3362 ± 69 3403 3391 ± 60
100θeq ...... 0.8128 0.816 ± 0.013 0.8224 0.821 ± 0.013 0.8125 0.815 ± 0.011
rdrag/DV(0.57) ...... 0.07130 0.0716 ± 0.0011 0.07207 0.0719 ± 0.0011 0.07126 0.07147 ± 0.00091

Notes. Columns 2 and 3 give results for the Planck temperature power spectrum data alone. Columns 4 and 5 combine the Planck temperature data with Planck lensing, and Cols. 6 and 7 include WMAP polarization at low multipoles. We give best fit parameters(i.e. the parameters that maximise the overall likelihood for each data combination) as well as 68% confidence limits for constrained parameters. The first six parameters have flat priors. The remainder are derived parameters as discussed in Sect. 2. Beam, calibration parameters, and foreground parameters (see Sect. 4) are not listed for brevity. Constraints on foreground parameters for Planck+WP are given later in Table 5.

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