X-ray surface brightness profile of NGC 7469 from a Chandra ACIS HETG zeroth-order observation (shown in red) and the corresponding PSF simulation (shown in blue). The results are for Chandra Obs. ID 2956. The profiles are shown for the 0.2–1 keV (top panel), 1–2 keV (middle panel), and 2–10 keV (bottom panel) energy bands. An excess soft X-ray emission (0.2–1 keV) is evident above the PSF in the top panel from 3 to 25 ACIS pixels (1.5–12′′).
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