Fig. 10
FR/RSS cross correlation results of Ark 120. left: B and NB, right: B and synthetic Hβ. Each histogram shows the distribution of τcent obtained by cross-correlating 2000 flux randomised and randomly selected subset light curves. The median of this distribution is taken as lag τcent. The red shaded area marks the 68% confidence range used to calculate the errors of τcent.
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