Hard X-ray view of two γ-ray-detected low-luminosity active galactic nuclei: NGC 315 and NGC 4261

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Table 2.

F test results for various scenarios in combined spectral analysis.

Source	Analysis	Parameter ^(a)	χ²/d.o.f.	P_F − T^(b)
NGC 315	SMF0		73.04/73

		N_H	72.80/72	37%
	SMF1	Γ	72.75/72	41%
		Norm	73.04/72	0

		N_H, Γ	72.75/71	13%
	SMF2	N_H, Norm	72.80/71	11%
		Γ, Norm	72.75/71	13%

NGC 4261	SMF0		176.10/184

		N_H	176.04/183	20%
	SMF1	Γ	176.02/183	23%
		Norm	176.10/183	0

		N_H, Γ	176.02/182	4%
	SMF2	N_H, Norm	176.04/182	3%
		Γ, Norm	176.02/182	4%

Notes.

^(a)

The parameter (Norm, N_H, and Γ) that was allowed to vary independently between the two satellite datasets.

^(b)

The P_F − T value represents the probability that the fitting improvement of this scenario, compared to SMF0, is statistically significant, as estimated by the F test.

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