Fig. 2
Light curve in two different energy ranges: upper panel 0.3–3.0 keV, and middle panel 3–10 keV. The lower panel shows the colour ratio (3–10) keV/(0.3–3.0) keV. The vertical green line divides T1 and T2 time intervals. The labels LF5a and LF5b refer to low-flux intervals, see text for detail. The epoch time corresponds to 57 255.50 MJD.
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