Fig. 2.
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Swift/XRT average spectrum of SDSS J164100.10+345452.7. The data are drawn from the whole two-year observing campaign (details on the spectral fits can be found in Table 3). Panel a: best fit obtained by adopting the model TBABS * ZPCFABS * ZPOWERLW; panel b: data/model ratio from the fit with TBABS * ZPOWERLW in the 2–10 keV band; panel c: data/model ratio from the fit with TBABS * ZTBABS * ZPOWERLW (0.3–10 keV); and panel d: data/model ratio from the fit with TBABS * ZPCFABS * ZPOWERLW (0.3–10 keV).
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