Table 5.
Forecasted improvements in constraining power for key cosmological parameters when employing IA model constraints as informative prior ranges on IA nuisance parameters.
| {Nuisance} Parameters | Ωm | σ8 |  |
w0 |
|---|---|---|---|---|
| Linear alignments (LA) | ||||
 , photo-z known |
2% | 1% | 1% | 1% |
 , photo-z known |
6% | 2% | 4% | 7% |
 |
3%, 4%, 3% | 2%, 1%, 1% | 2%, 2%, 2% | 2%, 1%, 1% |
 |
27%, 24%, 20% | 22%, 17%, 14% | 25%, 21%, 17% | 17%, 22%, 20% |
| Non-linear alignments (NLA) | ||||
 , photo-z known |
7% | 1% | 4% | 14% |
 , photo-z known |
2% | 0% | 1% | 15% |
 |
38%, 28%, 25% | 27%, 18%, 14% | 36%, 25%, 21% | 20%, 27%, 26% |
 |
64%, 38%, 32% | 56%, 23%, 17% | 62%, 36%, 27% | 51%, 43%, 39% |
Notes. The variable parameters for each mode of an N/LA forecast are indicated by curly brackets in the left-most column. Improvements are given as the percentage reductions in the sizes of 1σ confidence intervals on respective parameters, for the no-prior, modest-prior and informative-prior photo-z bias prior setups (see Table 4), hence we only display a single reduction for the cases without any photo-z bias.
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