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Fig. 6.
XMM-Newton EPIC emission of NGC 4013 in the energy band 0.2–1 keV (contours) overlaid on the DSS blue image. The contours start at 3, 3.5, 4.5, 6σ levels. The image is adaptively smoothed with the largest smoothing scale of 10″ and the signal-to-noise ratio of 10. The spectral core region is marked with a red circle.
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