Fig. 1
(Left) Fermi-LAT count map using front events above 1 GeV around Centaurus B in units of counts per pixel. The pixel size is 
. Smoothing with a Gaussian kernel of 
is applied. The background 2FGL sources contained in the region are shown as green crosses. The position of Centaurus B is indicated as a white cross. (Middle) Background model map. (Right) Background-subtracted count map.
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