Table 3.
Constraints on cosmological parameters for GCph alone.
| Model | Ωm, 0 | Ωb, 0 | w0 | wa | h | ns | σ8 | ∑mν | |
|---|---|---|---|---|---|---|---|---|---|
| ΛCDM | Only density | 1.4 | 4.2 | – | – | 2.8 | 1.2 | 0.80 | – |
| + magnification | 1.1 | 4.2 | – | – | 2.8 | 1.1 | 0.57 | – | |
| ΛCDM + ∑mν | Only density | 1.9 | 4.2 | – | – | 2.9 | 1.4 | 1.2 | 140 |
| + magnification | 1.6 | 4.2 | – | – | 2.9 | 1.2 | 1.0 | 130 | |
| w0 waCDM | Only density | 7.3 | 9.1 | 25 | 84 | 3.7 | 1.8 | 1.9 | – |
| + magnification | 4.7 | 6.9 | 16 | 54 | 3.2 | 1.2 | 1.6 | – | |
| w0 waCDM + ∑mν | Only density | 7.4 | 9.6 | 25 | 84 | 3.7 | 1.9 | 1.9 | 160 |
| + magnification | 4.7 | 7.2 | 16.5 | 54 | 3.2 | 1.3 | 1.6 | 150 | |
Notes. The 1σ constraints on cosmological parameters are relative to their corresponding fiducial values (in %), without and with magnification. For the parameter wa, we report the absolute error times 100. We have marginalised over the galaxy bias parameters, and the values of the local count slope are kept fixed in the computation of the constraints with magnification. We report the results for four cosmological models: a minimal ΛCDM model with one massive neutrino species and fixed neutrino mass, an analogue model that includes dynamical dark energy, denoted as w0 waCDM, and two extensions of these models where the sum of the neutrino masses is a free parameter.
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