Fig. 3

Excess count maps of the HESS J1825–137 region in four different energy bands: E < 1 TeV, 1 TeV < E < 10 TeV, E > 10 TeV, and E > 32 TeV. The size of the source is clearly much reduced at high energies. Other sources within the field of view include the binary LS 5039 and the hard-spectrum source HESS J1826–130. The positions of the pulsars PSR B1823–13 associated with HESS J1825–137 and PSR J1826–1256 (which might be associated with HESS J1826–130) are also shown. Significance contours are shown at 5, 10, and 15σ for maps with energies below 10 TeV, and at 3, 5, and 10σ for maps with energies above 10 TeV.
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