Open Access

Table C.2.

UV and optical emission-line ratios and equivalent widths for stacked samples.

Weak stack Strong stack No C III] stack
Flux ratios
C IV/He II 0.403 ± 0.400 2.6 ± 0.8 < 1.14
C III]/He II 4.4 ± 1.4 5.6 ± 1.6 4.6 ± 1.6
[Ne III]/[O II] 1.3 ± 0.1 1.0 ± 0.1 0.90 ± 0.07
[O III]/Hβ 6.6 ± 0.4 5.9 ± 0.3 5.3 ± 0.1

Equivalent width
C IVλλ1548, 1551 0.81 ± 0.77 12.6 ± 1.7 < 0.92
C III] λλ1907,1909 13.5 ± 0.6 43.5 ± 3.6 5.7 ± 0.3

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