Table 2.
BAO fitting results for the ACF using 1500 FLASK mocks.
| Tests | z-bins | ⟨α⟩ | ⟨σα⟩ | σ68 | σstd | ⟨χ2⟩ /d.o.f. ( ) |
Ns (%) | Nd (%) | Mean |
|---|---|---|---|---|---|---|---|---|---|
| 21 cm only | |||||||||
| 1–10 | 1.1158 | 0.1427 | 0.1209 | 0.1166 | 122.49/123 (1.00) | 65.27 | 45.73 | 1.0067 ± 0.2433 | |
| Fid. config. | 11–20 | 1.0426 | 0.0977 | 0.0775 | 0.0923 | 76.84/70 (1.10) | 81.00 | 75.00 | 1.0082 ± 0.1014 |
| 21–30 | 1.0060 | 0.0565 | 0.0425 | 0.0514 | 69.54/61 (1.14) | 92.60 | 92.00 | 1.0076 ± 0.0507 | |
| + white noise | |||||||||
| 1–10 | 1.0906 | 0.1619 | 0.1042 | 0.1066 | 122.05/123 (0.99) | 58.73 | 48.60 | 1.0070 ± 0.2915 | |
| Fid. config. | 11–20 | 1.0524 | 0.1213 | 0.0924 | 0.0948 | 76.34/70 (1.09) | 80.53 | 73.80 | 1.0107 ± 0.1470 |
| 21–30 | 1.0267 | 0.0932 | 0.0807 | 0.0883 | 67.88/61 (1.11) | 89.60 | 85.13 | 1.0070 ± 0.0989 | |
| + white noise + foreground residuals | |||||||||
| Fid. config. | 1–10 | 1.0897 | 0.1624 | 0.1123 | 0.1118 | 122.42/123 (1.00) | 57.07 | 46.27 | 0.9952 ± 0.3270 |
| (Δθ = 0.50°; | 11–20 | 1.0362 | 0.1267 | 0.0969 | 0.1070 | 76.60/70 (1.09) | 70.20 | 63.93 | 0.9989 ± 0.1546 |
| q = 0, 1, 2) | 21–30 | 1.0074 | 0.1006 | 0.0809 | 0.0930 | 68.37/61 (1.12) | 78.00 | 73.53 | 0.9965 ± 0.1039 |
| 1–10 | 1.0901 | 0.1649 | 0.1018 | 0.1080 | 238.66/287 (0.83) | 53.40 | 44.67 | 0.9670 ± 0.6540 | |
| Δθ = 0.25° | 11–20 | 1.0370 | 0.1307 | 0.0999 | 0.1054 | 166.28/180 (0.92) | 71.67 | 64.87 | 1.0135 ± 0.2560 |
| 21–30 | 1.0063 | 0.1034 | 0.0842 | 0.0970 | 154.15/164 (0.94) | 76.67 | 72.33 | 0.9826 ± 0.1394 | |
| 1–10 | 1.0888 | 0.1647 | 0.1100 | 0.1157 | 155.02/165 (0.94) | 57.73 | 46.60 | 1.0034 ± 0.3245 | |
| Δθ = 0.40° | 11–20 | 1.0375 | 0.1298 | 0.0969 | 0.1054 | 100.85/98 (1.03) | 72.00 | 65.20 | 0.9981 ± 0.1597 |
| 21–30 | 1.0160 | 0.0998 | 0.0833 | 0.0982 | 90.00/86 (1.05) | 78.80 | 73.07 | 0.9976 ± 0.1065 | |
| 1–10 | 1.1687 | 0.1299 | 0.1092 | 0.1117 | 130.45/133 (0.98) | 37.40 | 18.73 | 0.9894 ± 0.3321 | |
| q = 0, 1 | 11–20 | 1.0364 | 0.1294 | 0.1022 | 0.1070 | 85.43/80 (1.07) | 70.00 | 63.60 | 0.9955 ± 0.1521 |
| 21–30 | 1.0068 | 0.1005 | 0.0823 | 0.0951 | 78.36/71 (1.10) | 85.80 | 80.67 | 1.0023 ± 0.0989 | |
| 1–10 | 1.0790 | 0.1813 | 0.1432 | 0.1269 | 114.55/113 (1.01) | 34.93 | 26.47 | 1.0015 ± 0.3270 | |
| q = −1, 0, 1, 2 | 11–20 | 1.0344 | 0.1307 | 0.0963 | 0.1018 | 67.38/60 (1.12) | 70.53 | 65.20 | 1.0047 ± 0.1521 |
| 21–30 | 1.0200 | 0.0954 | 0.0801 | 0.0895 | 58.92/51 (1.14) | 85.87 | 82.20 | 1.0096 ± 0.1014 | |
| 1–10 | 1.0995 | 0.1657 | 0.1046 | 0.1039 | 216.71/123 (1.76) | 14.20 | 11.33 | 0.9952 ± 0.7275 | |
| q = −2, 0, 1 | 11–20 | 1.0444 | 0.1214 | 0.0839 | 0.0904 | 146.87/70 (2.10) | 39.87 | 37.73 | 0.9989 ± 0.1648 |
| 21–30 | 1.0178 | 0.0963 | 0.0790 | 0.0891 | 101.07/61 (1.67) | 63.87 | 61.07 | 0.9965 ± 0.1065 | |
| + white noise + foreground residual (varying beam size) | |||||||||
| 1–10 | 1.0929 | 0.1620 | 0.1162 | 0.1157 | 121.86/123 (0.99) | 58.20 | 46.33 | 0.9994 ± 0.3118 | |
| Fid. config. | 11–20 | 1.0419 | 0.1245 | 0.1003 | 0.1113 | 77.35/70 (1.10) | 72.87 | 64.27 | 1.0004 ± 0.1546 |
| 21–30 | 1.0164 | 0.0900 | 0.0665 | 0.0871 | 72.09/61 (1.18) | 80.53 | 76.27 | 1.0030 ± 0.0887 | |
Notes. The first three parts of the table correspond to analyses of 21 cm only, noisy 21 cm (+ white noise), and BINGO-like (+ white noise + foreground residuals) mocks, using the fiducial configuration in both cases. The other parts of the table show results from the robustness tests, where the first column points out the aspects that varied with respect to the fiducial configuration, namely the Δθ binning width and the q index from ω(θ) template. All robustness tests were performed over the BINGO-like mocks. The last part of the table corresponds to analyses of the BINGO-like mocks, employing the fiducial configuration, when the beam size was varied with frequency. The last column shows 
obtained from fitting the mean clustering from the mocks. See text for details.
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