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Home All issues Volume 499 / No 1 (May III 2009) A&A, 499 1 (2009) 21-29 Full HTML
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Table 1:

Summary of the posterior distribution mean values for the different sets of parameters constrained, with the corresponding 68% confidence intervals.
Parameter Vanilla Vanilla + $ \Omega_k$ Vanilla + w Vanilla + $\Omega _{\rm k} + w$ Parameter Definition
$ \Omega_{\rm b}h^2$ $ 0.0227\pm 0.0005$ $0.0227\pm0.0006$ $0.0228\pm0.0006$ $ 0.0227\pm 0.0005$ Normalised baryon matter density times h2
$\Omega_{\rm c}h^2$ $0.112\pm0.003 $ $0.109\pm0.005$ $0.109\pm0.005$ $0.109\pm0.005$ Normalised CDM density times h2
$ \theta$ $ 1.042\pm0.003$ $ 1.042\pm0.003$ $ 1.042\pm0.003$ $ 1.042\pm0.003$ Ratio of sound horizon to angular diameter distance
$\tau$ $ 0.085\pm0.017$ $0.088\pm0.017$ $0.087\pm0.017$ $0.088\pm0.017$ Reionization optical depth
$ n_{\rm s}$ $0.963\pm0.012$ $0.964\pm0.013$ $0.967\pm0.014$ $0.964\pm0.014$ Primordial spectral index at $k=0.05~\rm Mpc^{-1}$
$ \log(10^{10} A_{\rm s})$ $3.07\pm0.04$ $3.06\pm0.04$ $3.06\pm0.04$ $3.06\pm0.04$ $A_{\rm s}$ is the primordial scalar power at $k=0.05~\rm Mpc^{-1}$
$\Omega _{\rm k}$ 0 $-0.005\pm0.007$ 0 $-0.005\pm0.0121$ Spatial curvature
w -1 -1 $-0.965\pm0.056$ $-1.003\pm0.102$ Dark energy EoS ( $w=p_\Lambda/\rho_\Lambda$)
$\Omega_\Lambda $ $ 0.738\pm0.015 $ $0.735\pm0.016$ $0.739\pm0.014$ $0.733\pm0.020$ Dark energy density ( $h^{-2}\rho_{\Lambda}$)
$ {\rm Age} $ $ 13.7\pm0.1$ $13.9\pm0.4$ $ 13.7\pm0.1$ $13.9\pm0.6$ Age of the universe in Gyr
$ \Omega_{\rm m}$ $ 0.262\pm0.015$ $0.270\pm0.019$ $0.261\pm0.020$ $0.272\pm0.029$ Normalised matter density
$\sigma_8$ $0.806\pm0.023$ $0.791\pm0.030$ $0.816\pm0.014$ $0.788\pm0.042$ Matter density fluctuation amplitude
$ z_{\rm re}$ $10.9\pm1.4$ $11.0\pm1.5$ $11.0\pm1.5$ $11.0\pm1.4$ Reionization redshift
h $ 0.716\pm0.014$ $0.699\pm0.028$ $0.713\pm0.015$ $0.698\pm0.037$ Hubble parameter

Source LaTeX | All tables | In the text

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