Open Access

Table 3

Total column densities.

Instrument log N(C IV) log N(N I) log N(Si II) log N(Al II) log N(Fe II) log N(Ni II)
ESPRESSO 14.70 ± 0.021 14.63 ± 0.015 >15.01 13.44 ± 0.040 14.75 ± 0.018 13.42 ± 0.060
UVES 14.71 ± 0.007 >15.12 13.47 ± 0.022 14.76 ± 0.015

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