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

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Table 3.

Individual and simultaneous spectral analysis results for NGC 315 and NGC 4261.

Source	Analysis	Observation ID	Start date	N_H	Γ	Norm	L_{3 − 10 keV}	σ_NXS²	χ²/d.o.f.
				(10²² cm⁻²)		(10⁻⁴ ph keV⁻¹ cm⁻² s⁻¹)	(10⁴¹ erg s⁻¹)
NGC 315	XMM-Newton	0821871701	2019 Jan. 27	$3 . 59_{- 0.62}^{+ 0.65}$ $3.59^{+0.65}_{-0.62}$	2.06 ± 0.12	$3 . 07_{- 0.55}^{+ 0.67}$ $3.07^{+0.67}_{-0.55}$	$2 . 75_{- 0.28}^{+ 0.26}$ $2.75^{+0.26}_{-0.28}$	< 0	59.36/53
	NuSTAR	60701060002	2021 Jul. 27	$3 . 95_{- 1.45}^{+ 1.59}$ $3.95^{+1.59}_{-1.45}$	1.96 ± 0.17	$2 . 93_{- 0.81}^{+ 1.11}$ $2.93^{+1.11}_{-0.81}$	$3 . 11_{- 0.62}^{+ 0.58}$ $3.11^{+0.58}_{-0.62}$	< 0.0083	13.39/18

	SMF0	All		$3 . 16_{- 0.60}^{+ 0.63}$ $3.16^{+0.63}_{-0.60}$	1.98 ± 0.10	$2 . 62_{- 0.39}^{+ 0.46}$ $2.62^{+0.46}_{-0.39}$	2.72 ± 0.23		73.04/73

NGC 4261	XMM-Newton	0502120101	2007 Dec. 16	$6 . 84_{- 0.29}^{+ 0.30}$ $6.84^{+0.30}_{-0.29}$	2.01 ± 0.06	$3 . 83_{- 0.33}^{+ 0.36}$ $3.83^{+0.36}_{-0.33}$	1.07 ± 0.05	< 0.0038	161.05/160
	NuSTAR	60701059002	2021 Jun. 02	$6 . 95_{- 1.31}^{+ 1.43}$ $6.95^{+1.43}_{-1.31}$	1.97 ± 0.16	$3 . 71_{- 0.95}^{+ 1.22}$ $3.71^{+1.22}_{-0.95}$	$1 . 11_{- 0.20}^{+ 0.19}$ $1.11^{+0.19}_{-0.20}$	< 0.0760	14.97/22

	SMF0	All		$6 . 77_{- 0.29}^{+ 0.30}$ $6.77^{+0.30}_{-0.29}$	1.99 ± 0.05	$3 . 74_{- 0.31}^{+ 0.33}$ $3.74^{+0.33}_{-0.31}$	1.07 ± 0.05		176.10/184

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