Fig. 3
First panel: data in the energy range of 0.5–8 keV. Second panel: corresponding best-fit geometric model with a double torus (Ng & Romani 2008). The arcs of the torus are marked as black dashed lines to illustrate the geometry. The third panel displays the residuals after the best-fit has been subtracted.The colour bar is in square root, and units are counts for all the images.
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