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Fig. A.1

image

Her X-1 light curve for the Main-On of 35 d cycle 462, representing orbital averages as observed by Swift/BAT. Upper panel: observed flux values. Lower panel: cleaned data with points during binary eclipses and dips, and extreme outliers, removed. Uncertainties of individual measurements around the maximum flux are of the order of 20%. The solid red line is the best fit function as defined in the text (Eq. (A.1)). The maximum flux for this 35 d cycle is 0.052 ± 0.002 BAT-cts/(cm2 s).

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