Table 5: Component structure of the $z_{\rm abs} = 2.066$ DLA system toward Q2231-00.
No. $z_{\rm abs}$ $v_{\rm rel}^*$ $b (\sigma_b)$ Ion $\log N (\sigma_{\log N})$ No. $z_{\rm abs}$ $v_{\rm rel}^*$ $b (\sigma_b)$ Ion $\log N (\sigma_{\log N})$
    km s-1 km s-1         km s-1 km s-1    
Low-ion transitions              
1 2.064746 -138 6.6 (0.5) Fe II 13.06 (0.04) 8 2.065887 -27 4.9 (0.1) Fe II 13.41 (0.02)
        Si II 13.53 (0.12)         Si II 13.87 (0.01)
2 2.064897 -123 9.0 (0.7) Fe II 13.20 (0.07)         S II 13.80 (0.26)
        Si II 13.79 (0.06)         N I 13.59 (0.22)
3 2.065087 -105 13.8 (1.4) Fe II 13.58 (0.04) 9 2.066072 -9 5.5 (0.4) Fe II 14.00 (0.05)
        Si II 13.97 (0.10)         Zn II 11.71 (0.06)
4 2.065266 -88 8.6 (0.2) Fe II 14.19 (0.01)         Cr II 12.12 (0.08)
        Zn II 11.63 (0.04)         Ni II 12.73 (0.03)
        Cr II 12.46 (0.03)         Mn II 11.92 (0.05)
        Ni II 13.04 (0.10)         Si II 14.59 (0.04)
        Mn II 11.97 (0.03)         Ti II 11.88 (0.18)
        Si II 14.57 (0.04)         S II 14.33 (0.13)
        S II 14.19 (0.13)         P II <12.81
        P II <12.90         N I 14.43 (0.06)
        N I 13.95 (0.11) 10 2.066161 0 3.8 (0.2) Fe II 14.26 (0.03)
5 2.065422 -72 4.2 (0.5) Fe II 13.59 (0.03)         Zn II 11.98 (0.03)
        Zn II 10.92 (0.17)         Cr II 12.60 (0.02)
        Cr II 11.77 (0.13)         Ni II 13.01 (0.02)
        Ni II 12.44 (0.17)         Mn II 12.16 (0.03)
        Mn II 11.46 (0.07)         Si II 14.83 (0.03)
        Si II 13.90 (0.06)         Ti II 12.58 (0.06)
        S II 13.87 (0.16)         S II 14.66 (0.13)
        P II <12.32         P II <13.03
        N I 13.22 (0.03)         N I 14.76 (0.22)
6 2.065546 -60 6.4 (0.2) Fe II 13.58 (0.02) 11 2.066275 +11 5.4 (0.1) Fe II 13.72 (0.01)
        Si II 13.83 (0.08)         Cr II 12.07 (0.08)
        S II 13.99 (0.14)         Ni II 12.70 (0.04)
        N I 13.25 (0.13)         Mn II 11.60 (0.06)
7 2.065698 -45 4.7 (0.3) Fe II 13.18 (0.02)         Si II 13.94 (0.03)
        Si II 13.57 (0.01)         S II 14.06 (0.21)
        S II 13.89 (0.25)         P II <12.74
        N I 13.30 (0.23)         N I 13.50 (0.23)
1 2.064788 -134 7.6 (3.0) Mg I 11.04 (0.12) 6 2.065903 -25 7.0 (0.7) Mg I 11.36 (0.03)
2 2.064981 -115 7.9 (2.1) Mg I 11.12 (0.09) 7 2.066064 -9 5.2 (0.4) Mg I 11.72 (0.05)
3 2.065233 -91 8.8 (0.5) Mg I 11.87 (0.03) 8 2.066155 -0.6 3.1 (1.3) Mg I 12.11 (0.06)
4 2.065461 -68 14.7 (1.7) Mg I 11.65 (0.05) 9 2.066274 +11 4.6 (1.0) Mg I 11.59 (0.06)
5 2.065692 -46 3.0 (1.0) Mg I 11.05 (0.06)            
Intermediate-ion transitions            
1 2.064758 -137 3.0 (1.2) Al III 11.72 (0.07) 6 2.065648 -50 10.7 (2.3) Al III 11.88 (0.07)
        Fe III <13.64         Fe III <13.83
2 2.064909 -122 6.6 (1.5) Al III 12.00 (0.05) 7 2.065925 -23 8.5 (2.7) Al III 12.10 (0.10)
        Fe III <13.92         Fe III <13.83
3 2.065123 -101 8.5 (2.3) Al III 12.01 (0.10) 8 2.066076 -8 3.3 (1.0) Al III 12.04 (0.19)
        Fe III <13.78         Fe III <13.59
4 2.065274 -87 6.5 (0.7) Al III 12.50 (0.03) 9 2.066165 0 5.1 (2.5) Al III 12.51 (0.09)
        Fe III <13.59         Fe III <13.74
5 2.065435 -71 3.0 (1.6) Al III 11.97 (0.02) 10 2.066290 +13 4.8 (1.3) Al III 11.96 (0.13)
        Fe III <13.77         Fe III <13.59
$\textstyle \parbox{16.5cm}{ $^*$\space Velocity relative to $z=2.066161$ .}$


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