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Fig. 4.

image

Full-band (0.5−10 keV) merged XRT image corresponding to the Fermi UGS 3FGL J0216.0+0300. The yellow dashed line indicates the 3FGL positional uncertainty ellipse at 95% confidence level, while the white circles show all XRT sources detected with S/N greater than 3. We find three OUTs in this field, since no X-ray source is detected within the Fermi ellipse. The image was smoothed with a Gaussian kernel of radius 5 pixels.

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