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Fig. B.3
QSO magnitude increase per unit of dust extinction AV as a function of the QSO redshift. We use an extinction curve with RV = 3.1. The u and g band curves are shown in a thinner trace for ζ> 1.64 and ζ> 2.31, the redshifts at which the intergalactic Lyα line can affect the photometry in these bands.
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