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Table 3

UV line EWs (rest) and fluxes of the three composite spectra.

EW (Å) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Flux ratio relative to [CIII] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
[CIII] CIV CIV He II He II [CIII] CIV CIV He II He II
A 1. 0.31 ± 0.03 0.27 ± 0.03
B 1. 0.37 ± 0.02 0.49 ± 0.03
C 1. − 0.23 ± 0.07 0.52 ± 0.05

Notes. (1) CIV strength corrected for stellar absorption. (2) He II strength corrected for stellar emission. (3) Corrected for reddening (see Sect. 5).

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