Data (left), simulated PSF (middle), and PSF-subtracted (right) images at the 0.5–2 keV energy band. Dashed red circles indicate the radial bins used for profile extraction, corresponding to the following radii: ∼2″, 2.5″, 3″, 4″, 5.5″, 8.9″, 10.3″, and 11.3″. The QSO position is marked with a black dot, and the shaded black circle represents the 2″ radius used to normalize PSF counts to the data. The annular region between 2″ and 4″ may include approximately 6 background counts.