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Table 1.
Parameters of the considered reionisation models and their associated priors or fixed values.
| Parameters | Priors or values | |
|---|---|---|
| Hyperbolic tangent models | ||
| tanh | tanhdz | |
| zre | 𝒰(5, 25) | |
| Δzre | =0.5 | 𝒰(0.1, 5) |
| Power-law models | ||
| 2-pow | 3-pow | |
| zend | 𝒰(5, 20) | 𝒰(5, 25) |
| α | 𝒰(0, 20) | |
| zbeg | =20 | 𝒰(5, 25) |
| Step-based models | ||
| 2-steps | 3-steps | |
| z1 | 𝒰(5, 25) | |
| z2 | 𝒰(5, 25) | |
| z3 | – | 𝒰(5, 25) |
| xe, 2 | 𝒰(0, 1 + fHe) | |
| xe, 3 | – | 𝒰(0, 1 + fHe) |
| Interpolation-based models | ||
| 2-knots | 3-knots | |
| 2-flex | 3-flex | |
| z1 | 𝒰(5, 25) | |
| z2 | 𝒰(5, 25) | |
| z3 | – | 𝒰(5, 25) |
| xe, 2 | – | 𝒰(0, 1 + fHe) |
| Binned models | ||
| 10-bins | ||
| xe, i ∈ [1, 10] | 𝒰(0, 1 + fHe) | |
| PCA model | ||
| mi ∈ [1, 5] | Very large uniform priors | |
| + physicality prior on xe(z) | ||
Notes. The notation 𝒰(a, b) denotes a uniform prior between a and b.
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