Table 1: Lines from System A ( $\mbox{$z_{\rm abs}$ }=2.44$) detected in the Keck spectrum.
No.Line ID $z_{\rm abs}$ b $\log N$ $C_{\rm f}$ M05 ID
    ( kms-1) ( cm-2)    
1.H I 2.41941 $\pm$ 0.00002 62.58 $\pm$ 6.51 13.656 $\pm$ 0.033 0.61  
1.C IV 2.41941 $\pm$ 0.00002 72.74 $\pm$ 3.42 14.965 $\pm$ 0.044 0.36 1; C IV
1.N V $\sharp$ 2.41941 $\pm$ 0.00002 26.74 $\pm$ 17.05 13.235 $\pm$ 0.964    
1.Si IV 2.41941 $\pm$ 0.00002 6.50 (fixed) 12.065 $\pm$ 0.182    

2.H I

 2.42001 $\pm$ 0.00002 25.00 (fixed) 14.496 $\pm$ 0.087 0.61  
2.C IV 2.42001 $\pm$ 0.00002 198.64 $\pm$ 21.32 14.225 $\pm$ 0.054 0.36  
2.N V $\sharp$ 2.42001 $\pm$ 0.00002 9.30 (fixed) 13.008 $\pm$ 0.257    
2.Si IV 2.42001 $\pm$ 0.00002 6.50 (fixed) 11.789 $\pm$ 0.325    

3.H I

 2.42344 $\pm$ 0.00025 25.00 (fixed) 13.132 $\pm$ 0.037 0.61  
3.C IV 2.42344 $\pm$ 0.00025 61.09 $\pm$ 18.07 13.440 $\pm$ 0.068 0.36  
3.N V $\sharp$ 2.42344 $\pm$ 0.00025 9.30 (fixed) 12.683 $\pm$ 0.319    
4.H I 2.42447 $\pm$ 0.00019 25.00 (fixed) 13.131 $\pm$ 0.037 0.61  
4.C IV 2.42447 $\pm$ 0.00019 34.72 $\pm$ 17.17 13.090 $\pm$ 0.333 0.36 2; C IV
4.N V $\sharp$ 2.42447 $\pm$ 0.00019 9.30 (fixed) 13.296 $\pm$ 0.349    
5.H I 2.42554 $\pm$ 0.00002 25.00 (fixed) 12.420 (fixed) 0.61  
5.C IV 2.42554 $\pm$ 0.00002 10.00 (fixed) 14.313 $\pm$ 0.870 0.36 3; C IV
5.N V $\sharp$ 2.42554 $\pm$ 0.00002 9.30 (fixed) 12.885 $\pm$ 0.106    
5.Si III $\sharp$ 2.42554 $\pm$ 0.00002 6.50 (fixed) 12.667 $\pm$ 0.041    
6.H I 2.42696 $\pm$ 0.00003 25.00 (fixed) 14.700 $\pm$ 0.050 0.61  
6.C IV 2.42696 $\pm$ 0.00003 44.13 $\pm$ 10.52 13.322 $\pm$ 0.086 0.36  
6.N V $\sharp$ (a)        
7.H I 2.42833 $\pm$ 0.00001 25.00 (fixed) 13.941 $\pm$ 0.016    
7.C IV 2.42833 $\pm$ 0.00001 10.00 (fixed) 13.526 $\pm$ 0.055    
7.N V $\sharp$ 2.42833 $\pm$ 0.00001 9.30 (fixed) 12.650 $\pm$ 0.200    
8.H I 2.43509 $\pm$ 0.00006 49.08 $\pm$ 30.79 12.361 $\pm$ 0.704    
8.C IV 2.43509 $\pm$ 0.00006 38.64 $\pm$ 8.37 13.440 $\pm$ 0.058   4; C IV
8.N V $\sharp$ 2.43509 $\pm$ 0.00006 9.30 (fixed) 12.977 $\pm$ 0.477    
8.Si III $\sharp$ 2.43509 $\pm$ 0.00006 6.50 (fixed) $\le$16.000    
9.H I 2.43710 $\pm$ 0.00005 100.56 $\pm$ 33.64 13.091 $\pm$ 0.110    
9.C IV 2.43710 $\pm$ 0.00005 81.40 $\pm$ 8.82 13.970 $\pm$ 0.024   5; C IV
9.N V $\sharp$ 2.43710 $\pm$ 0.00005 9.30 (fixed) 13.094 $\pm$ 1.220    
9.Si III $\sharp$ 2.43710 $\pm$ 0.00005 6.50 (fixed) $\le$16.000    
9.Si IV 2.43710 $\pm$ 0.00005 6.50 (fixed) 12.050 $\pm$ 0.190    

10.H I

 2.43753 $\pm$ 0.00002 25.00 (fixed) 13.262 $\pm$ 0.061    
10.C IV 2.43753 $\pm$ 0.00002 10.00 (fixed) 13.596 $\pm$ 0.121   6; C IV
10.N V $\sharp$ 2.43753 $\pm$ 0.00002 9.30 (fixed) 13.717 $\pm$ 0.327    
10.Si III $\sharp$ 2.43753 $\pm$ 0.00002 6.50 (fixed) $\le$16.000    
10.Si IV 2.43753 $\pm$ 0.00002 6.50 (fixed) 11.839 $\pm$ 0.292    

11.H I

 2.43911 $\pm$ 0.00030 138.45 (fixed) 13.244 $\pm$ 0.087    
11.C IV 2.43911 $\pm$ 0.00030 50.59 $\pm$ 40.10 13.273 $\pm$ 0.481   7; C IV
11.N V $\sharp$ (a)        
11.Si III $\sharp$ 2.43911 $\pm$ 0.00030 6.50 (fixed) $\le$15.376    
12.H I 2.43989 $\pm$ 0.00019 25.00 (fixed) 12.464 $\pm$ 0.344    
12.C IV 2.43989 $\pm$ 0.00019 10.00 (fixed) 12.825 $\pm$ 0.534   8; C IV
12.N V $\sharp$ 2.43989 $\pm$ 0.00019 9.30 (fixed) 12.485 $\pm$ 0.880    
12.Si III $\sharp$ 2.43989 $\pm$ 0.00019 6.50 (fixed) $\le$16.000    
13.H I 2.44079 $\pm$ 0.00042 72.42 (fixed) 13.057 $\pm$ 0.103    
13.C IV 2.44079 $\pm$ 0.00042 77.05 $\pm$ 50.41 13.518 $\pm$ 1.886   9; C IV
13.N V $\sharp$ (a)        
13.Si III $\sharp$ 2.44079 $\pm$ 0.00042 6.50 (fixed) $\le$12.734    
14.H I 2.44215 $\pm$ 0.00030 25.00 (fixed) 13.004 $\pm$ 0.131    
14.C IV 2.44215 $\pm$ 0.00030 10.00 (fixed) 13.787 $\pm$ 0.100   10; C IV
14.N V $\sharp$ 2.44215 $\pm$ 0.00030 9.30 (fixed) 14.054 $\pm$ 0.101    
14.Si III $\sharp$ 2.44215 $\pm$ 0.00030 6.50 (fixed) $\le$11.587    
15.H I 2.44228 $\pm$ 0.00021 81.41 $\pm$ 43.00 13.106 $\pm$ 0.221    
15.C IV 2.44228 $\pm$ 0.00021 123.22 $\pm$ 87.76 13.240 $\pm$ 0.305   11; C IV
15.N V $\sharp$ 2.44228 $\pm$ 0.00021 9.30 (fixed) 13.808 $\pm$ 0.171    
15.Si III $\sharp$ 2.44228 $\pm$ 0.00021 6.50 (fixed) $\le$11.520    
16.H I 2.44325 $\pm$ 0.00148 114.39 (fixed) 13.086 $\pm$ 0.203    
16.C IV 2.44325 $\pm$ 0.00148 100.74 (fixed) 13.709 $\pm$ 0.055   12; C IV
16.N V $\sharp$ (a)        
16.Si III $\sharp$ 2.44325 $\pm$ 0.00148 6.50 (fixed) $\le$12.394    
17.H I 2.44480 $\pm$ 0.00018 91.30 $\pm$ 64.73 13.093 $\pm$ 0.104    
17.C IV 2.44480 $\pm$ 0.00018 30.00 $\pm$ 20.54 13.070 $\pm$ 0.176   14; C IV
17.N V $\sharp$ 2.44480 $\pm$ 0.00018 9.30 (fixed) 13.094 $\pm$ 0.433    
17.Si III $\sharp$ 2.44480 $\pm$ 0.00018 6.50 (fixed) $\le$12.679    
18.H I 2.44641 $\pm$ 0.00021 75.27 $\pm$ 25.93 13.154 $\pm$ 0.216    
18.C IV 2.44641 $\pm$ 0.00021 109.27 $\pm$ 58.99 13.807 $\pm$ 0.202   15; C IV
18.N V $\sharp$ (a)        
18.Si III $\sharp$ 2.44641 $\pm$ 0.00021 6.50 (fixed) $\le$13.483    
19.H I 2.44818 $\pm$ 0.00002 25.00 (fixed) 13.594 $\pm$ 0.020    
19.C IV 2.44818 $\pm$ 0.00002 41.51 $\pm$ 49.68 12.920 $\pm$ 0.366    
19.N V $\sharp$ (a)        
19.Si III $\sharp$ 2.44818 $\pm$ 0.00002 6.50 (fixed) $\le$12.467    
20.H I 2.44954 $\pm$ 0.00035 41.27 (fixed) 12.608 (fixed)    
20.C IV 2.44954 $\pm$ 0.00035 62.77 $\pm$ 55.72 13.133 $\pm$ 0.388    
20.N V $\sharp$ (a)        
20.Si III $\sharp$ 2.44954 $\pm$ 0.00035 6.50 (fixed) $\le$12.644    
21.H I 2.45069 $\pm$ 0.00082 25.00 (fixed) 12.874 (fixed)    
21.C IV 2.45069 $\pm$ 0.00082 65.13 $\pm$ 108.68 13.117 $\pm$ 0.681    
21.N V $\sharp$ 2.45069 $\pm$ 0.00082 9.30 (fixed) 11.928 $\pm$ 1.265    
21.Si III $\sharp$ 2.45069 $\pm$ 0.00082 6.50 (fixed) $\le$12.511    
22.H I 2.45174 $\pm$ 0.00041 51.00 (fixed) 14.245 (fixed)    
22.C IV 2.45174 $\pm$ 0.00041 53.88 $\pm$ 44.25 13.059 $\pm$ 0.340    
22.N V $\sharp$ 2.45174 $\pm$ 0.00041 9.30 (fixed) 12.686 $\pm$ 0.923    
22.Si III $\sharp$ 2.45174 $\pm$ 0.00041 6.50 (fixed) $\le$14.411    
$\sharp$ - Heavy-element line in the Ly$\alpha $ forest region of the spectrum; ¶ - saturated line;
(a) - detected in the MMT spectrum, but not seen in the Keck spectrum.


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