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Table 6

Deviations between measured column densities and Cloudy calculations in component 6.

Ion A Δlog N(A)
Model 6.1 Model 6.2 Model 6.3

C ii 0 0.19 0.52
N ii 0.65 0.85 1.10
O i 0.04 −0.04 −0.04
Mg ii −0.18 0.05 0.40
Al ii 0.16 0.58 1.13
Al iii −0.46 0.24 1.09
Si ii 0.04 0.27 0.69
Fe ii 0.29 0.31 0.41
S ii −0.43 −0.27 0.01

Are the ion ratios reproduced correctly?
(Al ii/Al iii) no no yes
(N i/N ii) yes yes yes

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