Table 1
Changes in the γ-ray spectrum between time intervals considered in the analysis.
| Period | UT interval | 100 MeV–100 GeV flux | Γph | TS | N |
|
|
|||||
| 33 months | 2008-08-04–2011-06-13 | (1.03 ± 0.04) × 10-7 | 2.18 ± 0.02 | 4415 | 3566 |
| pre-flare | 2008-08-04–2009-11-16 | (0.34 ± 0.05) × 10-7 | 2.41 ± 0.09 | 205 | 476 |
| Flare 1 | 2009-11-16–2009-12-21 | (6.94 ± 0.32) × 10-7 | 1.97 ± 0.03 | 3333 | 947 |
| Interflare | 2009-12-21–2010-04-26 | (1.37 ± 0.11) × 10-7 | 2.15 ± 0.06 | 917 | 592 |
| Flare 2 | 2010-04-26–2010-07-26 | (2.83 ± 0.16) × 10-7 | 2.14 ± 0.04 | 1839 | 907 |
| post-flare | 2010-07-26–2011-06-13 | (0.44 ± 0.06) × 10-7 | 2.34 ± 0.09 | 236 | 422 |
Notes. Column designation: Column 1, γ-ray activity state; Col. 2, time interval used for spectral analysis; Col. 3, average flux in units of photons cm-2 s-1; Col. 4, photon index: dN(E)/dE ∝ E− Γph; Col. 5, Test Statistic (TS) defined in Sect. 2.1; and Col. 6, number of photons attributed to the source (model dependent).
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