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Table 2.

Fiducial sampling parameters and their priors.

Parameter Prior
S8 = σ8m/0.3)0.5 [0.1, 1.3]
ωc = Ωch2 [0.051, 0.255]
ωb = Ωbh2 [0.019, 0.026]
h [0.64, 0.82]
ns [0.84, 1.1]

AIA [ − 6, 6]
Abary [2, 3.13]

δz 𝒩(μ,C)
δc 0 ± 2.3 × 10−4

Notes. We vary five cosmological parameters assuming flat priors, with the ranges indicated in the second column. Ωc and Ωb are the density parameters for cold dark matter and baryonic matter, respectively. The dimensionless Hubble parameter is represented by h and ns is the spectral index of the primordial power spectrum. Two astrophysical nuisance parameters, AIA and Abary, are allowed to vary over flat prior distributions. We also allow for freedom in the mean of the redshift distributions using five shift parameters, δz, one per redshift bin. These parameters are correlated through their covariance matrix, C. Their means μ are fixed to the mean values for Δz in Table 1, where we also show the square root of the diagonals of C. The δc parameter is only applied to the ξ± chains, which mitigates the combined effect of constant additive ellipticity bias through a Gaussian prior centred on zero. For justification of prior ranges we refer to J20, G20 and H20b.

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