Multi-wavelength picture of the misaligned BL Lac object 3C 371

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Table 6.

Results of the γ-ray Fermi-LAT spectral fit using power-law and log-parabola spectral shapes, averaging the complete 3 years of data, and a power law during the time period simultaneous to Swift observations for the high and low emission states.

Time interval	Spectral model	f₀	E₀	α	β	TS_{log − parabola}
[MJD]		[10⁻¹² × MeV⁻¹ cm⁻² s⁻¹]	[MeV]
58119–59215 ^(a)	Power law	5.94 ± 0.24	788.7	2.30 ± 0.03	–	6.40
	Log-parabola	6.40 ± 0.32	788.7	2.29 ± 0.04	0.057 ± 0.025

58891–58951 ^(b)	Power law	8.40 ± 1.27	788.7	2.42 ± 0.12	–		–
58682–58936 ^(c)	Power law	2.45 ± 0.63	788.7	2.14 ± 0.18	–	–

Notes.

^(a)

3-year averaged spectrum.

^(b)

High state γ-ray spectrum during the period of Swift-UVOT/XRT observations.

^(c)

Low state γ-ray spectrum during the period of Swift-UVOT/XRT observations.

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