| Name |
 |
[Fe/H] | [O/H] | [N/H] | (O/H)+12c | (N/O)d | [S/H] | [Si/H] |
| Q 0000-263a | 3.390 | -2.00(0.09) | -1.67(0.13) | -2.50(0.08) | 7.02 | -1.69(0.10) | -1.89(0.09) | -1.88(0.08) |
| Q 0102-190 | 2.926 | -1.68(0.10) | -1.56(0.13) | -3.07(0.15) | 7.13 | -2.30(0.16) | -1.37(0.10) | -1.50(0.10) |
| Q 0112-306 | 2.418 | -2.64(0.09) | -2.24(0.12) | -3.17(0.09) | 6.45 | -1.79(0.09) | -1.25(0.08) | -2.42(0.08) |
| Q 0347-383 | 3.025 | -1.85(0.05) | -0.97(0.12) | -1.92(0.05) | 7.72 | -1.81(0.11) | -1.18(0.06) | -1.49(0.06) |
| Q 0841+129 | 2.476 | -1.79(0.10) | -1.40(0.10) | -2.69(0.10) | 7.29 | -2.15(0.04) | -1.55(0.10) | -1.58(0.10) |
| Q 0913+072 | 2.618 | -2.72(0.10) | -2.45(0.10) | <-3.73 | 6.24 | <-2.14 | -1.66(0.10) | -2.57(0.10) |
| Q 1108-077 | 3.608 | -1.96(0.07) | -1.69(0.08) | <-3.36 | 7.00 | <-2.53 | -1.57(0.07) | |
| Q 1337+113 | 2.508 | -2.23(0.05) | -1.91(0.11) | -3.11(0.11) | 6.78 | -2.06(0.14) | -1.84(0.06) | |
| Q 1337+113 | 2.796 | -2.14(0.08) | -1.95(0.10) | -2.84(0.09) | 6.74 | -1.61(0.09) | -1.84(0.09) | |
| Q 1340-136 | 3.118 | -1.59(0.08) | -1.22(0.08) | -2.60(0.08) | 7.47 | -2.24(0.03) | -1.41(0.08) | -1.18(0.08) |
| Q 1409+095 | 2.456 | -2.43(0.08) | -1.89(0.08) | <-2.85 | 6.80 | <-1.82 | -1.74(0.08) | -2.17(0.08) |
| Q 1409+095 | 2.668 | -1.51(0.08) | -1.31(0.08) | -2.13(0.08) | 7.38 | -1.68(0.03) | -1.40(0.09) | -1.28(0.08) |
| Q 1946+769b | 2.844 | -2.50(0.06) | -2.14(0.06) | -3.51(0.07) | 6.55 | -2.23(0.04) | -2.21(0.06) | |
| Q 2059-360 | 3.083 | -1.97(0.08) | -1.58(0.09) | -2.86(0.08) | 7.11 | -2.14(0.04) | -1.76(0.09) | -1.66(0.09) |
| Q 2332-094 | 3.057 | -1.60(0.07) | -1.24(0.07) | -2.60(0.08) | 7.45 | -1.94(0.05) | -1.32(0.08) | |
| QXO 0001b | 3 | <-1.08 | -1.62(0.05) | -3.22(0.06) | 7.07 | -2.46(0.05) | -1.79(0.05) |
systems.
a Molaro et al. (2001); b Prochaska et al. (2002); c = ([O/H]);
d errors are taken as square root of the geometrical mean of the variances of N(N I) and N(O I), as given in
Table 1, except for Q 0102-190, Q 1337+113 at
= 2.796 and Q 2332-094 for which we consider only
the main components of the systems to calculate the [N/O] ratio (see text in Sect. 3).
|