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Table 4.
One-sigma uncertainty (marginalizing over other relevant parameters) for the additional free parameter, Qn of two flat fixed-n models, including a cosmological constant, for various combinations of observational data.
| Data | Planck prior | σ(Q1) | σ(Q1/2) |
|---|---|---|---|
| Pantheon+Hubble | No | 1.8 × 10−3 | 3.5 × 10−2 |
| Union2.1+Hubble | No | 1.5 × 10−3 | 3.0 × 10−2 |
| Pantheon | Yes | 1.2 × 10−2 | 4.2 × 10−2 |
| ELT+WFIRST | No | 3.0 × 10−4 | 1.8 × 10−2 |
| ELT+WFIRST | Yes | 2.7 × 10−4 | 9.2 × 10−3 |
Notes. The first three rows refer to current data, while the last two are forecasts for future data.
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