Table 2.
Marginalised posterior constraints on the AP distortion parameter ϵ and growth rate fσ8 obtained from fits to the Flagship mock data in four redshift bins.
| zeff | fσ8 | ϵ | |
|---|---|---|---|
| Flat prior range | [0.05,1.5] | [0.8,1.2] | |
| Perfect reconstruction | 1.00 | 0.46 ± 0.04 | 1.002 ± 0.005 |
| 1.20 | 0.41 ± 0.05 | 1.002 ± 0.006 | |
| 1.40 | 0.40 ± 0.05 | 1.003 ± 0.006 | |
| 1.64 | 0.41 ± 0.04 | 1.000 ± 0.006 | |
| Realistic reconstruction | 1.00 | 0.49 ± 0.04 | 0.995 ± 0.005 |
| 1.20 | 0.44 ± 0.05 | 1.000 ± 0.005 | |
| 1.40 | 0.40 ± 0.05 | 1.005 ± 0.006 | |
| 1.64 | 0.43 ± 0.05 | 0.999 ± 0.006 | |
| Realistic reconstruction | 1.00 | 0.51 ± 0.04 | 0.997 ± 0.005 |
| with σz = 0.001 | 1.20 | 0.44 ± 0.05 | 1.004 ± 0.005 |
| 1.40 | 0.40 ± 0.06 | 1.005 ± 0.006 | |
| 1.64 | 0.44 ± 0.05 | 1.000 ± 0.006 | |
Notes. We present results in three scenarios: idealised perfect reconstruction (using true real-space galaxy positions), realistic reconstruction and realistic reconstruction performed on a catalogue with added redshift errors. Fits are performed using covariance Cdata estimated for Flagship. The true value of ϵ is 1 as the data are analysed in the Flagship fiducial cosmology. The true values of fσ8 in each redshift bin are as listed in Table 1.
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