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Table 7.

Fit results for the RX J1713.7–3946 observations for different analysis methods.

Analysis method TS Nsrc k0 Γ Ec
H.E.S.S. published (a) n.c. ∼31 000 2.3 ± 0.1 2.06 ± 0.02 12.9 ± 1.1
Unbinned 784.6 2148 2.0 ± 0.1 1.85 ± 0.08 8.8 ± 2.2
Joint binned 852.9 2243 2.1 ± 0.1 1.86 ± 0.08 9.1 ± 2.3
Stacked binned 806.2 2119 1.9 ± 0.1 1.85 ± 0.08 9.4 ± 2.4
Joint On-Off (wstat) (b) 551.6 2563 3.2 ± 0.4 1.90 ± 0.15 4.9 ± 2.3
Joint On-Off (wstat) (c) 336.5 1929 2.8 ± 0.4 1.51 ± 0.20 3.5 ± 1.3
Joint On-Off (cstat) 353.9 2034 2.1 ± 0.1 1.90 ± 0.10 12.3 ± 3.8
Stacked On-Off (wstat) (b) 558.4 2612 2.8 ± 0.2 2.04 ± 0.11 9.0 ± 4.2
Stacked On-Off (wstat) (c) 341.9 1977 2.3 ± 0.2 1.75 ± 0.14 6.9 ± 2.5
Stacked On-Off (cstat) 351.2 2009 2.3 ± 0.2 1.79 ± 0.13 7.9 ± 2.8

Notes. The template map scaled to was used as spatial model component, and an exponentially cut-off power law was used for the spectral component. TS is the Test Statistic and Nsrc is the number of source events attributed to the source within the analysis region, which is the full field of view for the 3D analyses and the On region for the On-Off analyses. k0, Γ, and Ec are the parameters of the exponentially cut-off power law, where k0 is given in units of 10−11 ph cm−2 s−1 TeV−1 and Ec in units of TeV.

(a)

Values are from the H.E.S.S. Collaboration (2018b).

(b)

For this result the scale factors αk, i were used, which are based on the assumption that the background rate per solid angle is the same in the On and the Off regions.

(c)

For this result the scale factors αk, i(Mb) that were computed for the cstat analysis were used, which take into account differences in the expected background rates between On and Off regions. “n.c.” signals that the information was not communicated in the publication.

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