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Fig. 2


MAGIC gamma-ray flux map in arbitrary units (a.u.) for events with estimated energy 300 GeV <Eest< 1 TeV (left) and Eest> 1 TeV (right). The median energies of these maps are estimated to be around 480 GeV and 1.7 TeV, respectively. The gamma-ray flux in arbitrary units is calculated as the number of smeared excess events in units of the background flux within 0.1°. Overlaid are test statistic (TS) value contours in steps of 1, starting at 3. They roughly correspond to Gaussian significances. Also shown in the bottom-left corner is the instrumental point spread function (PSF) after the applied smearing. The Fermi-LAT source position is that determined by Rousseau et al. (2012). The markers labeled HESS J1857+026 and HESS J1858+020 are centroid positions determined by Aharonian et al. (2008).

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