Table 3.
Mean values and 68% c.l. bounds obtained using current α measurements and their combination with Euclid forecasts.
| ΛCDM fiducial | |||
|---|---|---|---|
| Current α | +Euclid pess | +Euclid opt | |
| Ωm | – | 0.3200 ± 0.0035 | 0.3199 ± 0.0018 |
| w0 | −0.99 ± 0.48 | −1.000 ± 0.036 | −1.001 ± 0.023 |
| wa | – | 0.00 ± 0.15 | 0.002 ± 0.087 |
| H0 | < 75.2 | 67.00 ± 0.36 | 67.00 ± 0.10 |
| ζ 108 |
 |
−0.1 ± 8.2 | 0.4 ± 8.9 |
| ζw0waCDM fiducial | |||
| Current α | +Euclid pess | +Euclid opt | |
| Ωm | – | 0.3194 ± 0.0038 | 0.3197 ± 0.0019 |
| w0 | −0.99 ± 0.48 |
 |
−0.944 ± 0.024 |
| wa | – |
 |
0.112 ± 0.085 |
| H0 | < 75.2 | 66.98 ± 0.37 | 67.00 ± 0.10 |
| ζ 108 |
 |
−3.6 ± 5.9 | −3.8 ± 4.9 |
Notes. Notice that in this case, as current α data are used, the modified ζ fiducial value of ζw0waCDM does not affect the results, given that the fiducial cosmology is used only for Euclid data, which are not sensitive to this parameter.
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