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Table 3
Parameters of the NGC 1275 γ-ray SED fit over the energy range 0.1–650 GeV, for different fit functions.
Power law:  |
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| Epoch | f 0 a | Γ | χ2/d.o.f. | Prob. |
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| Camp. 1 | 111 ± 8 | 2.38 ± 0.03 | 57.4/8 | 1.5e-9 |
| Camp. 2 | 176 ± 7 | 2.41 ± 0.02 | 317/10 | 3.e-62 |
Power law with exponential cutoff:
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| Epoch | f 0 a | Γ | E c b | χ2/d.o.f. | Prob. |
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| Camp. 1 | 149 ± 10 | 1.93 ± 0.06 | 67 ± 12 | 8.6/7 | 0.28 |
| Camp. 2 | 411 ± 25 | 1.75 ± 0.05 | 7.3 ± 1.6 | 26.5/9 | 0.0017 |
Power law with a subexp. cutoff:
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| Epoch | f 0 a | Γ | E c b | χ2/d.o.f. | Prob. |
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| Camp. 1 | 201 ± 17 | 1.77 ± 0.08 | 13.1 ± 4.2 | 9.4/7 | 0.22 |
| Camp. 2 | 536 ± 51 | 1.72 ± 0.05 | 5.0 ± 1.6 | 19.3/9 | 0.023 |
Log parabola:  |
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| Epoch | f 0 a | β | E p c | χ2/d.o.f. | Prob. |
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| Camp. 1 | 163 ± 11 | 0.26 ± 0.04 | 2.8 ± 1.5 | 12.3/7 | 0.09 |
| Camp. 2 | 371 ± 13 | 0.31 ± 0.03 | 1.1 ± 0.2 | 13.4/9 | 0.15 |
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