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Fig. 5.


Seven analysis windows covering continuous episodes of low-flux which are tabulated in Table 3. The uniform distribution fit to the bins of each Bayesian block (solid line) and its 1σ uncertainty (dashed line) are indicated in green. The function fit to each segment of the light curve, as well as its two exponential terms, is plotted as black curves (see the text for detail). The black and blue horizontal lines respectively indicate the intermediate-state average flux and the threshold of the “low” state we define.

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