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Fig. 2
XRT 0.3–10 keV images of high-energy Fermi sources for which more than one X-ray detection is found. Black circles depict the location of each XRT detection. Black ellipse and black-dashed-dotted ellipse depict the positional uncertainty of the 1FHL and 3FGL sources, respectively.
This figure is made of several images, please see below:
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