Table 1
Spectral parameters in the energy ranges of 60 MeV–4 GeV and 500 MeV–300 GeV for power-law (PL) and smoothly broken power-law (SBPL) models, using Fermi-LAT data and 290 GeV–10 TeV with H.E.S.S.
| Model | Φ0 | Γ1 | Γ2 | Ebr | Source TS |
|---|---|---|---|---|---|
| Fermi-LAT: | |||||
| 60 MeV–4 GeV: | (10−10 cm−2 s−1 MeV −1) | (MeV) | |||
| PL | 6.2 ± 0.3 | 2.07 ± 0.04 | ⋯ | ⋯ | 906 |
| SBPL | 3.3 ± 0.5 (±0.6) | 0.10 ± 0.30 (±0.28) | 2.21 ± 0.05 (±0.06) | 304 ± 20 (±10) | 990 |
| 500 MeV–300 GeV: | (10−10 cm−2 s−1 MeV −1) | (GeV) | |||
| PL | 10.4 ± 0.8 | 2.32 ± 0.03 | ⋯ | ⋯ | 1570 |
| SBPL | 8.2 ± 1.2 (±2.3) | 2.20 ± 0.06 (±0.16) | 2.89 ± 0.23 (±0.15) | 9.4 ± 2.9 (±3.8) | 1584 |
| H.E.S.S.: | |||||
| >290 GeV: | (10−13 cm−2 s−1 TeV −1) | ||||
| PL | 3.15 ± 0.46 (±0.63) | 3.14 ± 0.24 (±0.10) | ⋯ | ⋯ | |
| Fermi-LAT & H.E.S.S.: | |||||
| 500 MeV–10 TeV: | (10−10 cm−2 s−1 MeV −1) | (GeV) | |||
| SBPL | 7.5 ± 1.2 | 2.17 ± 0.06 | 2.80 ± 0.04 |  |
|
Notes. Systematic errors are provided in parentheses. The reference energy for which the Φ0 is given is 1 TeV for H.E.S.S. and 200 MeV for Fermi-LAT and the combined spectrum results. The last column indicates the source TS as described in Sect. 2.2.
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