Table 3.
Components and column densities (N) with their corresponding b-parameters in the GRB system.
| Component I |
Component II |
Component III |
Component IV |
Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ion | Transitions | vb | log(N/cm−2) | vb | log(N/cm−2) | vb | log(N/cm−2) | vb | log(N/cm−2) | log(N/cm−2) |
| Å | (km s−1) | (km s−1) | (km s−1) | (km s−1) | ||||||
| HI | Lyα to Ly9 | – | – | – | – | – | – | – | – | 20.97 ± 0.01 |
| S II | 1250, 1253, (1259) | 0 22 | 14.69 ± 0.02 | –76 15 | 14.33 ± 0.04 | – | – | –188 28 | 14.20 ± 0.05 | 14.94 ± 0.02 |
| Si II | 1260, 1304, 1526, 1808 | 0 22 | 14.54 ± 0.02 | –76 15 | 14.77 ± 0.03 | – | – | –188 28 | 13.97 ± 0.02 | 15.04 ± 0.02 |
| O I | 1302 | 0 15 | < 17.2 | –76 15 | < 16.0 | – | – | –188 30 | 14.58 ± 0.01 | < 17.2 |
| C II | 1334 | 0 22 | 15.30 ± 0.10 | –76 15 | 15.80 ± 0.10 | –142 30 | 13.78 ± 0.02 | –188 28 | 14.56 ± 0.01 | 15.94 ± 0.04 |
| Fe II | 1608, 2260, 2344, 2374 | 0 22 | 14.43 ± 0.02 | –76 15 | 14.18 ± 0.02 | – | – | –188 28 | 13.56 ± 0.06 | 14.66 ± 0.01 |
| (2382, 2586, 2600) | ||||||||||
| Al II | 1670 | 0 22 | 13.23 ± 0.01 | –76 15 | 14.03 ± 0.05 | –142 30 | 12.99 ± 0.01 | –188 28 | 12.81 ± 0.02 | 14.14 ± 0.02 |
| Zn II | 2026 | 0 22 | 12.01 ± 0.09 | –76 15 | 11.84 ± 0.12 | – | – | –188 30 | 11.96 ± 0.10 | 12.42 ± 0.06 |
| Mg II | 2796, 2803 | 0 21 | 13.80 ± 0.1 | –95 43 | 14.85 ± 0.27 | – | – | –188 32 | 13.86 ± 0.04 | 15.08 ± 0.20 |
| Mg I | 2026, 2852 | 0 50 | 12.24 ± 0.06 | –95 25 | 12.17 ± 0.06 | – | – | –188 32 | 12.42 ± 0.03 | 12.76 ± 0.03 |
| Fe II1s | 2333, 2612, 2626 | 0 13 | 13.32 ± 0.02 | –76 25 | 13.26 ± 0.03 | – | – | –188 20 | 12.92 ± 0.04 | 13.68 ± 0.08 |
| Fe II3s | 2338, 2359, (2631) | 0 13 | 12.63 ± 0.08 | –76 25 | 12.80 ± 0.06 | – | – | –188 20 | 12.49 ± 0.12 | 13.13 ± 0.05 |
| Fe II4s | 2345, 2629 | 0 13 | 12.90 ± 0.03 | –76 25 | 12.48 ± 0.10 | – | – | – | – | 13.03 ± 0.02 |
| Fe II 5s | 1637, 1702 | 0 13 | 13.19 ± 0.04 | –76 25 | 13.13±0.06 | – | – | –188 20 | 12.89 ± 0.09 | 13.56 ± 0.03 |
| Ni II2s | 2217, 2316 | 0 13 | 13.17 ± 0.01 | –76 25 | 13.03 ± 0.02 | – | – | –188 20 | 12.59 ± 0.04 | 13.46 ± 0.01 |
| Si II* | 1309, 1533 | 0 27 | 14.08 ± 0.01 | –76 35 | 14.04 ± 0.01 | –142 30 | 13.22 ± 0.05 | –188 38 | 13.95 ± 0.01 | 14.50 ± 0.01 |
| C II* | 1335.6, 1335.7 | 0 27 | 13.87 ± 0.01 | –76 35 | 14.38 ± 0.01 | – | – | –188 38 | 14.48 ± 0.01 | 14.79 ± 0.01 |
| O I* | 1304 | 0 33 | 14.24 ± 0.01 | –63 27 | 14.09 ± 0.02 | – | – | –176 30 | 14.50 ± 0.01 | 14.79 ± 0.01 |
| O I** | 1306 | 0 50 | 14.52 ± 0.06 | –63 15 | 14.40 ± 0.06 | –102 16 | 14.53 ± 0.03 | –176 30 | 14.46 ± 0.03 | 15.23 ± 0.04 |
| 51 33 | 14.70 ± 0.04 | |||||||||
| C IV | 1548, 1550 | +6 29 | 13.51 ± 0.03 | –83 43 | 13.19 ± 0.27 | –114 27 | 15.42 ± 0.08 | –188 28 | 13.62 ± 0.03 | 15.43 ± 0.07 |
| Si IV | 1402 | +6 29 | 13.17 ± 0.02 | –83 43 | 13.65 ± 0.02 | –114 27 | 14.44 ± 0.02 | –188 28 | 13.33 ± 0.02 | 14.55 ± 0.01 |
| N V | 1238, 1242 | – | – | –83 43 | 13.47 ± 0.03 | –114 27 | 13.54 ± 0.03 | –188 28 | 13.08 ± 0.05 | 13.88 ± 0.02 |
| S IV | 1062 | – | – | –83 43 | 14.42 ± 0.02 | –114 27 | 14.07 ± 0.05 | –188 28 | 13.68 ± 0.06 | 14.63 ± 0.02 |
| S VI | 933, 944 | – | – | –83 43 | 13.52 ± 0.05 | –114 27 | 13.97 ± 0.03 | –188 28 | 13.16 ± 0.09 | 14.15 ± 0.03 |
| O VI | 1031, (1037) | +6 29 | 13.77 ± 0.03 | –83 43 | 14.22 ± 0.02 | –114 27 | 14.33 ± 0.02 | –188 28 | 13.94 ± 0.02 | 14.72 ± 0.15 |
| P V | 1117, 1128 | – | – | –28 25 | 13.54 ± 0.01 | –103 25 | 13.13 ± 0.02 | – | – | 13.68 ± 0.01 |
Notes. Their velocity (v) is defined with respect to the highest redshift component, which we define as having v = 0 km s−1. Transitions in brackets are detected but were not used for the fit due to either blending with other lines or large errors due to sky emission lines.
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