Fig. 20.
Left: proportion of obscured AGN as a function of redshift. The blue squares show data for seven redshift ranges: 0.4–0.7, 0.7–1, 1–1.3, 1.3–1.6, 1.6–2, 2–2.6, and 2.6–3.8 in z. The 68% credible interval is indicated by the shaded area. The red filled circles are data for sources in the five redshift spikes. Right: median absorbing column density for the whole sample as a function of redshift. The shaded area indicates the 68% bootstrap error interval. The red symbols show the values for the five redshift spikes.
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