H.E.S.S. and Fermi-LAT observations of PSR B1259–63/LS 2883 during its 2014 and 2017 periastron passages

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Volume 633 (January 2020)

A&A, 633 (2020) A102

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Table 4

Likelihood fit results of the Fermi-LAT data for the 2010/11, 2014 and 2017 periastron passages, together with the results of a stacked analysis for the pre-flare period.

Time interval/[MJD]	Year	Days from t_p /[d]	Φ(E > 100 MeV)/[ph cm⁻² s⁻¹]	Γ
55478.5–55646.5	2010/11	[−66.5, 101.5]	(3.6 ± 0.3) × 10⁻⁷	2.98 ± 0.09
56714.5–56882.5	2014	[−66.5, 101.5]	(4.7 ± 0.5) × 10⁻⁷	3.22 ± 0.09
57951.5–58119.5	2017	[−66.5, 101.5]	(4.6 ± 0.3) × 10⁻⁷	2.98 ± 0.07
Stacked	All years	[−66.5, 24.5]	(2.0 ± 0.3) × 10⁻⁷	3.0 ± 0.2

Notes. Columns indicate the integration time interval (in MJD), the phase interval is given as days from the periastron t_p, the integral flux is computed for energies above 100 MeV, assuming a photon index Γ.

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