Fig. B.1.
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Relation between W C IVλ1549 (left panels) and intensity ratio C IVλ1549/Hβ (right panels) with the ionization parameter U for three density values log nH = 9, 9.5, 10 [cm−3] (black, blue, and magenta symbols, respectively), column density Nc = 1022 cm−2, 5 times solar metallicity. Top: For log MBH = 109 [M⊙], and a Mathews & Ferland (1987) SED. Bottom: log MBH = 109.5 [M⊙], and a Krawczyk et al. (2013) SED.
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