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Table 2
Constraints on cosmological parameters for a ΛCDM model with the addition of a varying fine-structure constant.
| Planck+WP | Planck+WP+highL | Planck+WP+BAO | Planck+WP+HST | Planck+WP+lensing | WMAP-9 | |
| Parameter | 68% limits | 68% limits | 68% limits | 68% limits | 68% limits | 68% limits |
|
|
||||||
| Ωbh2 ...... | 0.02207 ± 0.00028 | 0.02212 ± 0.00028 | 0.02220 ± 0.00026 | 0.02226 ± 0.00028 | 0.02218 ± 0.00027 | 0.0231 ± 0.0013 |
| Ωch2...... | 0.1173 ± 0.0031 | 0.1183 ± 0.0030 | 0.1160 ± 0.0029 | 0.1167 ± 0.0031 | 0.1162 ± 0.0027 | 0.1145 ± 0.0048 |
| H0...... |
|
66.2 ± 1.7 | 66.8 ± 1.2 | 68.3 ± 1.5 | 65.9 ± 1.7 |
|
| τ...... |
|
|
|
|
|
|
| α/α0...... | 0.9934 ± 0.0042 | 0.9964 ± 0.0037 | 0.9955 ± 0.0039 | 0.9991 ± 0.0039 | 0.9938 ± 0.0043 | 1.007 ± 0.020 |
| ns...... | 0.975 ± 0.012 | 0.967 ± 0.011 | 0.975 ± 0.012 | 0.969 ± 0.012 | 0.977 ± 0.011 | 0.974 ± 0.014 |
| ln(1010As)... |
|
|
|
|
|
3.090 ± 0.038 |
Notes. We quote errors at the 68% confidence level. The Hubble constant H0 is in units of km s-1 Mpc-1.
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