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Fig. 7.

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Swift/XRT long-term light curves with fluxes corrected for absorption in the 1–10 keV energy range (IGR J17503-2636 on the top, IGR J17507-2647 on the bottom). Time is in units of MJD (spanning seven years, from July 2012 to May 2019). Fluxes are in units of 10−11 erg cm−2 s−1. Downward red arrows indicate 3σ upper limits on the source intensity.

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