Table 2.
Results of the Fermi/LAT unbinned likelihood analysis for GRB 230812B using a power-law model.
| Bin | t − T0 [s] | Emax [GeV] | Flux | Index | TS | ||
|---|---|---|---|---|---|---|---|
| [10−7 erg cm−2 s−1] | |||||||
| 0.1 − Emax | 0.1–100 GeV | 0.1 − Emax | 0.1–100 GeV | ||||
| Bin 1 | 0–0.4 | 0.2 | 6.73 ± 2.82 | 6.38 ± 2.43 | 4.01 ± 1.07 | – | 63 |
| Bin 2 | 1.4–2.0 | 0.3 | 4.54 ± 2.82 | 3.76 ± 1.74 | 2.83 ± 0.75 | – | 41 |
| Bin 3 | 2.0–3.6 | 0.9 | 5.94 ± 3.51 | 4.37 ± 1.50 | 2.37 ± 0.39 | 1.96 ± 0.52 | 121 |
| Bin 4 | 3.6–10.2 | 2.5 | 6.70 ± 3.86 | 3.38 ± 0.10 | 1.90 ± 0.20 | 1.62 ± 0.26 | 202 |
| Bin 5 | 10.2–25.0 | 1.1 | 1.05 ± 0.52 | 0.76 ± 0.22 | 2.33 ± 0.31 | 1.97 ± 0.40 | 94 |
| Bin 6 | 25.0–250.0 | 72.0 | 0.41 ± 0.19 | 0.38 ± 0.17 | 1.75 ± 0.15 | 1.75 ± 0.15 | 136 |
| Bin 7 | 251.9–647.2 | 14.0 | < 0.51 | < 0.15 | 1.47 ± 0.52 | 2.00 ± 0.00 | 18 |
Notes. The energy flux and spectral index are reported separately for two energy ranges: 0.1–100 GeV, and 0.1 GeV up to the highest-energy photon (Emax) detected in each time bin (as listed in the second column). Flux values corresponding to a TS below 25 are reported as upper limits (3σ).
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