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Table 1

Analysis results corresponding to eight 200 day subintervals (A–H) as well as the complete Fermi-LAT dataset.

Interval Tstart Tend Tstart TS T S Flux (0.2–300 GeV) Γ
(MET) (MET) (UTC) (10-9 ph cm-2 s-1)

A 239 557 417 256 837 417 2008-08-04 15:43:36 0.0 0.0 <2.39 ...
B 256 837 417 274 117 417 2009-02-20 15:43:35 3.0 0.4 <5.37 ...
C 274 117 417 291 397 417 2009-09-08 15:43:35 3.3 0.6 <5.80 ...
D 291 397 417 308 677 417 2010-03-27 15:43:35 4.1 1.0 <1.36 ...
E 308 677 417 325 957 417 2010-10-13 15:43:35 6.8 3.2 <7.81 ...
F 325 957 417 343 237 417 2011-05-01 15:43:35 7.1 3.5 <4.46 ...
G 343 237 417 360 517 417 2011-11-17 15:43:35 63.0 58.9 8.22 ± 2.04 1.76 ± 0.09
H 360 517 417 377 797 417 2012-06-04 15:43:35 12.3 8.5 3.05 ± 1.32 1.69 ± 0.12
All 239 557 417 377 797 417 2008-08-04 15:43:36 54.1 ... 1.78 ± 0.79 1.70 ± 0.15

Notes.Test statistic values are quoted before (TS) and after (TS′) correcting for the number of independent trials. For intervals during which the source was detected such that TS > 9, the HE γ-ray flux and best fitting power-law spectral index (Γ) are also listed. For other intervals, upper limits to the HE γ-ray flux (at the 95% confidence level) are presented.

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