Table 1.
H.E.S.S. observations of PKS 2155−304.
| Epoch | Date | Live time | Mode | Eth | ϕdec(Edec) | Γ | Edec | Flux |
|---|---|---|---|---|---|---|---|---|
| [h] | [TeV] | [10−12 cm−2 s−1 TeV−1] | [TeV] | [10−12 cm−2 s−1] | ||||
| 1 | 2013-07-17 | 1.2 | Stereo | 0.108 | 68.1 ± 5.5 | 2.89 ± 0.12 | 0.27 | 57.6 ± 5.4 |
| 2 | 2013-08-03 | 2.0 | Mono | 0.072 | 324.8 ± 27.7 | 2.84 ± 0.14 | 0.18 | 173.4 ± 17.2 |
| 3 | 2013-08-08 | 0.4 | Stereo | 0.120 | 98.9 ± 11.6 | 2.82 ± 0.21 | 0.26 | 59.1 ± 7.5 |
| 4 | 2013-09-28 | 1.2 | Mono | 0.072 | 211.5 ± 28.5 | 2.72 ± 0.23 | 0.20 | 133.4 ± 20.9 |
| 5 | 2013-06-05 | 0.9 | Stereo | 0.146 | 61.8 ± 12.3 | 3.17 ± 0.60 | 0.26 | 27.0 ± 5.8 |
| 6 | 2013-06-19 | 0.8 | Stereo | 0.108 | 123.1 ± 9.1 | 2.79 ± 0.13 | 0.26 | 90.1 ± 7.8 |
| Stack | 6.5 | Combined | 0.121 | 75.7 ± 2.7 | 3.00 ± 0.06 | 0.29 | 62.0 ±2.6 | |
Notes. The first five columns give the epoch label, the observation date, the live time, the observation mode, and the energy threshold. The data were fitted with a simple power-law with differential flux ϕdec at Edec (the decorrelation energy) and with anindex Γ. The integrated flux above Eth is also given.
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