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Table A.1.
Upper limits at 2σ confidence level on SN 2023ixf for different exposure times ΔT starting at T0. Integrated photon (Fph; in photons cm−2 s−1) and energy (Fe; in erg cm−2 s−1) flux limits assume a spectral photon index Γ = 2 and are derived as explained in Section 2.
| Time | TS | Fph(> 100 MeV) | Fe(> 100 MeV) | Fph(> 1 GeV) | Fe(> 1 GeV) | Fph(> 10 GeV) | Fe(> 10 GeV) |
|---|---|---|---|---|---|---|---|
| T0 to 1 d | 0.0 | 6.3 × 10−8 | 8.6 × 10−11 | 6.3 × 10−9 | 5.8 × 10−11 | 6.1 × 10−10 | 3.5 × 10−11 |
| T0 to 3 d | 1.9 | 5.4 × 10−8 | 7.3 × 10−11 | 5.3 × 10−9 | 4.9 × 10−11 | 5.2 × 10−10 | 3.0 × 10−11 |
| T0 to 5 d | 0.9 | 3.1 × 10−8 | 4.2 × 10−11 | 3.1 × 10−9 | 2.8 × 10−11 | 3.0 × 10−10 | 1.7 × 10−11 |
| T0 to 7 d | 3.5 | 3.6 × 10−8 | 5.0 × 10−11 | 3.6 × 10−9 | 3.4 × 10−11 | 3.5 × 10−10 | 2.0 × 10−11 |
| T0 to 14 d | 1.1 | 1.9 × 10−8 | 2.6 × 10−11 | 1.9 × 10−9 | 1.8 × 10−11 | 1.8 × 10−10 | 1.1 × 10−11 |
| T0 to 31 d | 2.0 | 1.1 × 10−8 | 1.5 × 10−11 | 1.1 × 10−9 | 1.0 × 10−11 | 1.1 × 10−10 | 6.0 × 10−12 |
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