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Fig. 7.

Unfolded spectrum of the low-luminosity observation of GX 304−1 in EF(E) with the best-fit model (solid black line) for NuSTAR FPMA (blue), FPMB (violet), and Swift/XRT (cyan). For clarity we rebinned the spectra with larger bins for plotting than the ones used for the fit (top). Ratio for the best-fit model (bottom).
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