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Fig. 4
XMM-Newton Epic-pn background-subtracted light curves of IGR J12580+0134. Top and middle panels show light curves extracted in the energy bands 0.1–2 keV (Soft) and 2–10 keV (Hard), respectively. The hardness ratio, defined as HR = (Hard − Soft)/(Hard + Soft), is reported in the bottom panel. The time bin is 100 s.
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