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Fig. 4

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GX 339-4 intensity variations. The 26–40 keV IBIS time series (gray), which contains 1183 data points (one measurement per exposure), is segmented into 17 constant segments or “time bins” (green). The between the time series and its segmented version is 1.0006 for 1166 d.o.f.. These curves are plotted as a function of time (top) and the exposure number (bottom). The raw time series (without S/N scaling) is directly segmented into 46 segments (bottom blue curve).

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