Fig. 7
Left: the 2.3–11 keV spectra taken from the two intervals, A 0–30 ks and B 30–60 ks, in the light curve. The spectra are plotted in 200-eV intervals with the best-fit model of the blueshifted ionized absorption computed by XSTAR (see text). Right: the χ2 curve as a function of energy, when scanning with a narrow Gaussian for absorption lines in the 7–10 keV range for the corresponding spectra.
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