Table 1
Component structure, column densities, and Doppler parameters for the z = 1.839 absorber towards QSO B1101−26.
| No. | vrel [km s-1] | Ion A | log N(A) | b [km s-1] |
|
|
||||
| 1 | −166.4 | C ii | 12.61 ± 0.05 | 9.5 ± 0.6 |
| N ii | − | − | ||
| O i | 12.45 ± 0.08(0.09) | 10.7 ± 2.3 | ||
| Mg i | − | − | ||
| Mg ii | 11.50 ± 0.13 | 6.3 ± 2.0 | ||
| Al ii | 10.79 ± 0.06 | 5.3 ± 0.9 | ||
| Al iii | 10.94 ± 0.22(0.22) | 7.9 ± 4.5 | ||
| Si ii | 11.28 ± 0.12 | 3.6 ± 1.1 | ||
| S ii | − | − | ||
| Fe ii | − | − | ||
|
|
||||
| 2 | −156.3 | C ii | 12.35 ± 0.09 | 4.8 ± 0.5 |
| N ii | − | − | ||
| O i | 12.08 ± 0.12(0.12) | 4.2 ± 1.1 | ||
| Mg i | − | − | ||
| Mg ii | 11.63 ± 0.09 | 4.4 ± 0.7 | ||
| Al ii | 10.55 ± 0.09 | 3.9 ± 1.0 | ||
| Al iii | − | − | ||
| Si ii | 11.94 ± 0.04 | 7.9 ± 0.9 | ||
| S ii | − | − | ||
| Fe ii | − | − | ||
|
|
||||
| 3 | −135.9 | C ii | 13.36 ± 0.00 | 9.8 ± 0.1 |
| N ii | − | − | ||
| O i | − | − | ||
| Mg i | − | − | ||
| Mg ii | 12.40 ± 0.01 | 7.2 ± 0.1 | ||
| Al ii | 11.44 ± 0.01 | 7.0 ± 0.2 | ||
| Al iii | 11.43 ± 0.07(0.08) | 8.9 ± 1.7 | ||
| Si ii | 12.39 ± 0.01 | 8.2 ± 0.2 | ||
| S ii | − | − | ||
| Fe ii | − | − | ||
|
|
||||
| 4 | −82.1 | C ii | 13.67 ± 0.01 | 14.6 ± 0.2 |
| N ii | − | − | ||
| O i | 12.50 ± 0.08(0.09) | 11.0 ∗ | ||
| Mg i | 10.80 ± 0.06(0.13) | 11.0 ∗ | ||
| Mg ii | 12.65 ± 0.02 | 9.6 ± 0.4 | ||
| Al ii | 11.69 ± 0.01 | 7.2 ± 0.3 | ||
| Al iii | 11.69 ± 0.05(0.06) | 12.0 ± 1.7 | ||
| Si ii | 12.37 ± 0.13 | 17.4 ± 0.8 | ||
| S ii | − | − | ||
| Fe ii | 11.80 ± 0.04(0.05) | 7.9 ± 1.1 | ||
|
|
||||
| 5 | −70.8 | C ii | 12.38 ± 0.05 | 2.7 ± 0.4 |
| N ii | − | − | ||
| O i | 12.81 ± 0.05(0.06) | 8.5 ± 1.3 | ||
| Mg i | 10.20 ± 0.17(0.21) | 5.0 ∗ | ||
| Mg ii | 12.06 ± 0.05 | 3.7 ± 0.3 | ||
| Al ii | 11.35 ± 0.03 | 5.4 ± 0.3 | ||
| Al iii | − | − | ||
| Si ii | 12.83 ± 0.04 | 14.5 ± 0.2 | ||
| S ii | − | − | ||
| Fe ii | 11.75 ± 0.04(0.05) | 5.0 ∗ | ||
| 6 | −46.3 | C ii | 14.22 ± 0.03 | 10.3 ± 0.3 |
| N ii | 13.14 ± 0.07(0.07) | 7.4 ∗ | ||
| O i | 13.83 ± 0.01(0.03) | 8.3 ± 0.2 | ||
| Mg i | 11.36 ± 0.03(0.12) | 9.6 ± 0.7 | ||
| Mg ii | 13.37 ± 0.02 | 8.8 ± 0.2 | ||
| Al ii | 12.25 ± 0.01 | 8.7 ± 0.1 | ||
| Al iii | 11.96 ± 0.05(0.06) | 12.6 ± 1.7 | ||
| Si ii | 13.33 ± 0.01 | 7.0 ± 0.1 | ||
| S ii | 13.28 ± 0.08 | 7.4 ± 1.5 | ||
| Fe ii | 12.78 ± 0.01(0.03) | 5.7 ± 0.1 | ||
|
|
||||
| 7 | −29.0 | C ii | 13.88 ± 0.06 | 9.7 ± 1.1 |
| N ii | 13.17 ± 0.07(0.07) | 8.5 ∗ | ||
| O i | 13.77 ± 0.01(0.03) | 6.9 ± 0.2 | ||
| Mg i | 11.03 ± 0.11(0.16) | 10.9 ± 2.8 | ||
| Mg ii | 13.01 ± 0.03 | 8.0 ± 0.6 | ||
| Al ii | 12.23 ± 0.02 | 15.6 ± 0.9 | ||
| Al iii | 11.13 ± 0.47(0.47) | 8.5 ∗ | ||
| Si ii | 13.26 ± 0.01 | 11.4 ± 0.4 | ||
| S ii | 13.13 ± 0.19 | 9.2 ± 2.5 | ||
| Fe ii | 12.67 ± 0.01(0.03) | 9.8 ± 0.3 | ||
|
|
||||
| 8 | −10.2 | C ii | 14.16 ± 0.01 | 9.1 ± 0.2 |
| N ii | 13.44 ± 0.04(0.04) | 6.4 ∗ | ||
| O i | 14.15 ± 0.00(0.03) | 7.4 ± 0.1 | ||
| Mg i | 11.47 ± 0.02(0.12) | 6.0 ± 0.3 | ||
| Mg ii | 13.35 ± 0.02 | 6.7 ± 0.2 | ||
| Al ii | 12.23 ± 0.01 | 6.2 ± 0.1 | ||
| Al iii | 11.66 ± 0.11(0.11) | 10.7 ± 3.5 | ||
| Si ii | 13.55 ± 0.00 | 6.0 ± 0.1 | ||
| S ii | 13.56 ± 0.06 | 13.2 ± 0.9 | ||
| Fe ii | 13.10 ± 0.0(0.03) | 5.3 ± 0.1 | ||
|
|
||||
| 9 | 15.4 | C ii | 13.58 ± 0.01 | 10.2 ± 0.3 |
| N ii | − | − | ||
| O i | 14.00 ± 0.01(0.03) | 14.8 ± 0.3 | ||
| Mg i | 10.94 ± 0.04(0.13) | 6.0 ± 0.7 | ||
| Mg ii | 12.66 ± 0.02 | 9.5 ± 0.5 | ||
| Al ii | 11.64 ± 0.02 | 9.6 ± 0.6 | ||
| Al iii | − | − | ||
| Si ii | 12.90 ± 0.01 | 11.1 ± 0.4 | ||
| S ii | − | − | ||
| Fe ii | 12.44 ± 0.01(0.03) | 5.0 ± 0.2 | ||
|
|
||||
| 10 | 26.4 | C ii | 12.75 ± 0.05 | 3.1 ± 0.2 |
| N ii | − | − | ||
| O i | − | − | ||
| Mg i | 10.87 ± 0.08(0.14) | 5.9 ± 1.6 | ||
| Mg ii | 12.22 ± 0.03 | 2.5 ± 0.3 | ||
| Al ii | 10.90 ± 0.12 | 2.2 ± 0.8 | ||
| Al iii | − | − | ||
| Si ii | 12.21 ± 0.04 | 2.3 ± 0.3 | ||
| S ii | − | − | ||
| Fe ii | 12.30 ± 0.01(0.03) | 2.8 ± 0.2 | ||
|
|
||||
| 11 | 35.8 | C ii | 13.38 ± 0.01 | 8.2 ± 0.2 |
| N ii | − | − | ||
| O i | 13.43 ± 0.02(0.04) | 17.6 ± 0.7 | ||
| Mg i | 10.40 ± 0.18(0.22) | 4.4 ± 1.6 | ||
| Mg ii | 12.42 ± 0.02 | 6.1 ± 0.3 | ||
| Al ii | 11.51 ± 0.03 | 7.0 ± 0.5 | ||
| Al iii | 11.13 ± 0.12(0.12) | 7.3 ∗ | ||
| Si ii | 12.44 ± 0.02 | 6.6 ± 0.3 | ||
| S ii | − | − | ||
| Fe ii | 11.90 ± 0.03(0.04) | 4.3 ± 0.4 | ||
Notes. The fields marked with “–” indicate non-visible components which were excluded from the fit. The b-values marked by an asterisk have been fixed during the fitting procedure to achieve a successful solution. The additional error in the column densities caused by the fixing has been added quadratically to the column density error in each component of the concerning absorption line and the total column density error is given in brackets. All other errors are provided by FITLYMAN.
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