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Fig. 5.

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1σ confidence regions of (h, Edd) for each source. Blue and red regions indicate the confidence regions for α* = 0 and 1, respectively. Similarly, lighter blue and red shaded areas show the 1σ confidence regions as determined by K21b when fitting the time-lags, for α* = 0 and 1, respectively. In the case of Mrk 142 (lower right panel), the lighter shaded areas indicate the 1σ (h, Edd) confidence regions obtained from our best fit to the time-lags assuming MBH = 4 × 106 M (see Sect. 6.6).

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