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Table 1

Column densities and abundances.

Ion/molecule Transitiona Column densityb Abundancecd
log (N/cm-2) ± σlog Ne [X/H]
H i Lyα 21.95 ± 0.10 ...
H2 J = 0 to J = 3 20.54 ± 0.13 ...
H2 J = 0 19.84 ± 0.33 ...
H2 J = 1 20.43 ± 0.12 ...
H2 J = 2 16.76 ± 0.50 ...
H2 J = 3 ≲19.01f ...
CO AX(0 − 0) to (5−0) <15.0 ...
Zn ii 2026, 2062 13.47 ± 0.06 −1.15 ± 0.12
S ii 1250 ≲ 16.22 ± 0.25f ≲  − 0.89 ± 0.26
Si ii 1808 ≳ 16.34 ± 0.16g ≳  − 1.16 ± 0.19
Si ii∗ 1309, 1533 14.31 ± 0.07
Mn ii 2576, 2594, 2606 13.26 ± 0.05 −2.15 ± 0.12
Fe ii 2249, 2260 15.29 ± 0.05 −2.15 ± 0.12
Fe ii∗ 2333, 2612 13.32 ± 0.05 ...
Fe ii∗∗ 2349, 2607 13.11 ± 0.08 ...
Fe ii  4F9/2 2348 13.13 ± 0.24 ...
Ni ii 1370, 1741, 1751 14.19 ± 0.05 −1.95 ± 0.12
Ni ii  4F9/2 2217, 2316 13.23 ± 0.05 ...
Cr ii 2056, 2062, 2066 13.75 ± 0.06 −1.87 ± 0.12
Mg i 2026 13.54 ± 0.05 ...
C i 1560, 1656 13.41 ± 0.11 ...
O i∗ 1306 15.29 ± 0.18 ...
N v 1238, 1242 ≲ 14.80 ± 0.21f ...

Notes.

(a)

For H2 and CO, this column denotes the different rotational levels of the vibration ground-state in the case of H2, or the different CO bandheads, respectively.

(b)

Total column density as the sum of both velocity components (see Sect. 3.2.3, and Fig. 4).

(c)

Assuming a negligible ionization correction, i.e. N(Fe) = N(Fe ii), N(Zn) = N(Zn ii), etc., and using the total column density of hydrogen as N(H) = N(H i) + 2N(H2).

(d)

Summed over all detected states of the same ion.

(e)

Quoted uncertainties are the formal errors provided by VPfit in the case of column densities of metals.

(f)

Considered as upper limit because of blending.

(g)

Considered as lower limit because of saturation.

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