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Fig. 4

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Mean 60 μm luminosity L60 of QSOs in COSMOS as a function of redshift, shown as solid dots with error bars. The x-axis error bars show the range in redshift that encompasses 80% of the sample in the respective redshift bin. The solid and dashed lines show the mean trends for AGNs from the XMM-COSMOS survey (Brusa et al. 2010) in two bins in instrinsic 2–10 keV X-ray luminosity. Vertical error bars placed at intervals on these lines show the 1σ scatter in these trends.

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