Table 1: Metal and molecular content of high-metallicity DLA/sub-DLA systems at $z_{\rm abs}>1.8$.
QSO $z_{\rm em}$ $z_{\rm abs}$ $\log N($H  I) 1 [X/H] 1 X $\log N($H2) 2 $\log f$ 3 References
            J=0 J=1    
Q 0013-004 2.09 1.973 $20.83\pm 0.05$ $-0.59\pm 0.05$ Zn 17.72-20.00 $\rm -1.68^{+1.07}_{-1.18}$ a
Q 0112-306 2.99 2.702 $20.30\pm 0.10$ $-0.49\pm 0.11$ Si <14.1 <14.0 <-5.55 b
Q 0216+080 2.99 2.293 $20.50\pm 0.10$ $-0.70\pm 0.11$ Zn <14.3 <14.5 <-5.39 c
Q 0347-383 3.22 3.025 $20.73\pm 0.05$ $-1.17\pm 0.07$ Zn $\rm 14.53^{+0.06}_{-0.06}$ $\rm -5.90^{+0.11}_{-0.11}$ b
Q 0405-443 3.02 2.595 $21.05\pm 0.10$ $-1.12\pm 0.10$ Zn $\rm 18.14^{+0.07}_{-0.10}$ $\rm -2.61^{+0.17}_{-0.20}$ b, d
Q 0458-020 2.29 2.040 $21.70\pm 0.10$ $-1.22\pm 0.10$ Zn <14.6 <14.6 <-6.40 e
Q 0528-250 2.77 2.811 $21.35\pm 0.07$ $-0.91\pm 0.07$ Zn $\rm 18.22^{+0.11}_{-0.12}$ $\rm -2.83^{+0.18}_{-0.19}$ b, d
Q 0551-366 2.32 1.962 $20.70\pm 0.08$ $-0.35\pm 0.08$ Zn $\rm 17.42^{+0.45}_{-0.73}$ $\rm -2.98^{+0.53}_{-0.81}$ f
Q 1037-270 2.23 2.139 $19.70\pm 0.05$ $-0.31\pm 0.05$ Zn <14.0 <14.1 <-5.05 g
Q 1209+093 3.30 2.584 $21.40\pm 0.10$ $-1.01\pm 0.10$ Zn <14.9 <15.1 <-5.69 c
Q 1441+276 4.42 4.224 $20.95\pm 0.10$ $-0.63\pm 0.10$ S $\rm 18.28^{+0.08}_{-0.07}$ $ \rm -2.38^{+0.18}_{-0.17}$ h
Q 1444+014 2.21 2.087 $20.25\pm 0.07$ $-0.80\pm 0.09$ Zn $\rm 18.16^{+0.14}_{-0.12}$ $\rm -1.80^{+0.21}_{-0.19}$ b
Q 2116-358 2.34 1.996 $20.10\pm 0.07$ $-0.34\pm 0.11$ Zn <14.5 <14.8 <-4.75 c
Q 2206-199 2.56 1.921 $20.67\pm 0.05$ $-0.54\pm 0.05$ Zn <14.4 <14.7 <-5.44 c
Q 2230+025 2.15 1.864 $20.90\pm 0.10$ $-0.81\pm 0.10$ S <15.4 <15.4 <-4.80 c
Q 2243-605 3.01 2.331 $20.65\pm 0.05$ $-0.85\pm 0.05$ Zn <13.8 <13.9 <-6.15 c
Q 2343+125 2.51 2.431 $20.40\pm 0.07$ $-0.89\pm 0.08$ Zn $\rm 13.69^{+0.09}_{-0.09}$ $\rm -6.41^{+0.16}_{-0.16}$ c
Q 2348-011 3.01 2.426 $20.50\pm 0.10$ $-0.60\pm 0.11$ S $\rm 18.45^{+0.27}_{-0.26}$ $\rm -1.76^{+0.37}_{-0.36}$ c
1 Neutral-hydrogen column densities and metallicities relative to Solar, [X/H $]\equiv\log~ [N($X)/N(H $)]-\log~ [N($X)/N(H$)]_\odot$(with ${\rm X}={\rm Zn}$ as the reference element when Zn  II is detected, or else either S or Si) are from Ledoux et al. (2006a).
2 Molecular-hydrogen column densities are summed up over all J levels in case of detection and upper limits for J=0 and J=1 are given in case of non-detection.
3 Molecular fraction, f=2N(H2)/(2N(H2)+N(H  I)).
a Petitjean et al. (2002), b Ledoux et al. (2003), c this work, d Srianand et al. (2005), e Heinmüller et al. (2006), f Ledoux et al. (2002b), g Srianand & Petitjean (2001), h Ledoux et al. (2006b).

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