Table 1
Spatial analysis results at 500 MeV –10 GeV.
| Spatial model | Energy flux | Power-law index | − 2(lnL0 −lnL) (b) | DoF (c) |
|---|---|---|---|---|
| (×10−11 erg cm−2 s−1) | ||||
| A (a) | 2.80 ± 0.13 | 3.31 ± 0.02 | 0 | 0 |
| e1+w1 | 0.65 ± 0.17 | 2.88 ± 0.10 | 3.4 | 2 |
| 2.35 ± 0.83 | 3.29 ± 0.24 | |||
| Uniform circle disk (0.45°) | 1.79 ± 0.05 | 2.62 ± 0.02 | 12 | 1 |
| Radio (4.8 GHz) | 2.94 ± 0.16 | 3.23 ± 0.04 | 0.1 | 0 |
| Radio (4.8 GHz, no ears) | 0.87 ± 0.01 | 2.45 ± 0.03 | <0 | 0 |
| X-ray (240 PHz) | ~0 | 2.03 ± 0.69 | <0 | 0 |
Notes. (a) Model A corresponds to point source model with a power-law spectrum at the best-fit location in Fig. 1. (b) − 2(lnL0 −lnL) represents the significance of the alternative hypothesis relative to model A (null hypothesis). (c) Additional degrees of freedom. Each uniform disk model is centered at the best-fit position. All the associated uncertainty refers to the 68% statistic errors. Details on the context are given in Sect. 2.
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