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Table 1
Primordial, baseline, and optional late-time cosmological parameters.
| Parameter | Definition |
|
|
|
| A s ........................... | Scalar power spectrum amplitude (at k=0.05 Mpc-1) |
| n s ............................. | Scalar spectral index (at k=0.05 Mpc-1 unless otherwise stated) |
| dns/ d lnk ................... | Running of scalar spectral index (at k=0.05 Mpc-1 unless otherwise stated) |
| d2ns/ d lnk2 ............. | Running of running of scalar spectral index (at k=0.05 Mpc-1) |
| r ..................................... | Tensor-to-scalar power ratio (at k=0.05 Mpc-1 unless otherwise stated) |
| n t ........................... | Tensor spectrum spectral index (at k=0.05 Mpc-1) |
|
|
|
| ωb ≡ Ωbh2 .............. | Baryon density today |
| ωc ≡ Ωch2 ............... | Cold dark matter density today |
| θ MC ............................... | Approximation to the angular size of sound horizon at last scattering |
| τ ..................................... | Thomson scattering optical depth of reionized intergalactic medium |
|
|
|
| N eff ................................. | Effective number of massive and massless neutrinos |
| Σmν ............................. | Sum of neutrino masses |
| YP ................................. | Fraction of baryonic mass in primordial helium |
| ΩK ...................................... | Spatial curvature parameter |
| wde ............................. | Dark energy equation of state parameter (i.e., pde/ρde) (assumed constant) |
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