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Table 7.

Linear relations (y = a + b * x) between different emission line properties.

y x Method a ± δa b ± δb RMSE CC ρ-value
(1) (2) (3) (4) (5) (6) (7) (8)
c(1/2)[O III] FWHM([O III]) Least squares 530 ± 205 −0.65 ± 0.08 402 −0.86 4.1 × 10−7
c(1/2)[C IV] FWHM(C IV) Least squares 2000 ± 737 (a) −0.68 ± 0.10 (a) 429 −0.90 (a) 1.1 × 10−4(a)
log W(C IV) log|c(1/2)|C V Bisector 3.21 ± 0.17 (a) −0.58 ± 0.05 (a) 0.28 −0.64 (a) 2.1 × 10−12(a)
log W(C IV) log FWHM(C IV) Bisector 8.31 ± 0.71 (a) −1.84 ± 0.19 (a) 0.31 −0.49 (a) 2.5 × 10−7(a)
c(1/2)[C IV] c(1/2)[O III] Orthogonal −1239 ± 276 1.50 ± 0.31 1086 0.45 4 × 10−3

Notes.

(a)

Only for Pop. A.

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