Free Access

Table 2

H.E.S.S. best-fit spectral parameters assuming a power-law model (Eq. (1)) between 0.2 and 30 TeV.

Region Φ(Edec) Edec Γ Equivalent χ2/ndf I1−30 TeV
× 10-12 [cm-2 s-1 TeV-1] [TeV] × 10-12 [ph cm-2 s-1]

Central 2.28±0.15stat 0.633 2.67±0.11stat 22/18 0.40±0.05stat
Annular 4.33±0.22stat 0.716 2.60±0.07stat 37/32 1.13±0.11stat
Total 6.50±0.27stat 0.687 2.64±0.06stat 29/32 1.46±0.11stat

Notes. The systematic errors are conservatively estimated to be ± 0.2 on the photon index and 20% on the flux (Aharonian et al. 2006a).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.