Table A.2.
Mg II equivalent widths and column densities
| Component | -47 km/s & -164 km/s | -640 km/s |
|---|---|---|
| EW(Mg II 2796) | (1.77 ± 0.02) Å | < 0.54 Å |
| EW(Mg II 2803) | (1.52 ± 0.02) Å | < 0.29 Å |
| EW ratio | 1.2 ± 0.1 | — |
| log(NMg II/cm−2) | > 13.8 | < 13.1 |
| log(NH I/cm−2)a | 20.2 ± 0.1 | 19.3 ± 0.10 |
| log(NH I / NMg II) | < 6.4 | > 6.2 |
Notes. Equivalent width of the Mg II transitions and corresponding column densities for different velocity components. The components at v = −47 km/s and v = −164 km/s are blended and are considered as a single component; the 3-σ lower limit on the Mg II column density is derived from the weaker transition (Mg II 2803), which is more constraining. For the undetected component at −640 km/s, the column density is the average of the values obtained using each of the two transitions.
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