Table 7.
χ2 values of the cosmographic fits performed over the approximants considered in this work.
| Sample | DoF | 𝒜 | Approximant χ2 |
||
|---|---|---|---|---|---|
| Taylor | Function y2 | Padé P2, 1 | |||
| Combo | 1113 | 1 | 1116.84 | 1230.71 | 1113.77 |
| 1112 | 2 | 1089.25 | 1160.04 | ||
| Ghirlanda | 1080 | 1 | 1120.19 | 1271.92 | 2203.16 |
| 1079 | 2 | 1075.01 | 1184.42 | ||
| Yonetoku | 1154 | 1 | 1235.08 | 1350.27 | 1178.07 |
| 1153 | 2 | 1147.72 | 1227.25 | ||
| Amati | 1246 | 1 | 2334.35 | 2818.25 | 2202.75 |
| 1245 | 2 | 2174.13 | 2539.98 | ||
Notes. For each GRB correlation, we report the number of degrees of freedom (DoF) and the considered hierarchy 𝒜. The correlations here are listed for increasing values of the ratio χ2/DoF, where the χ2 refers to the Taylor 𝒜1 expansion.
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