Fig. 1
Data/model ratio of the four 2014 XMM-Newton/pn spectra of Ark 120 fitted with a Galactic absorbed power-law continuum model over the 3–5 keV energy range, and then extrapolated over the 0.3–10 keV energy range. Black: March 18, red: March 20, green: March 22, and blue: March 24. Top panel: 0.3–10 keV energy range. Bottom panel: zoom on the Fe Kα complex.
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