Fig. 8.
XMM-Newton PN light curves in the 0.3 − 5.0 keV (open circles) and 5 − 8 keV (solid dots) with the best fit of the rise phase (linear increase) and decay phase (exponential decrease). The rates are subtracted from the respective background rates. The green segment indicates the interval where the median of the quiescent rate has been calculated. The quiescent rate has been subtracted to derive the decay times.
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