Table 1
Apparent optical depth measurements of low-ion absorption in the Q0841+129 PDLA.
| Line | v − , v + a |
b
|
log Nac |
| ( km s-1) | (mÅ) | (Na in cm-2) | |
|
|
|||
| N i 1134.2 | −30, 30 | 13 ± 3 | 13.96 ± 0.03 |
| N i 1134.4 | −30, 30 | 26 ± 3 | 13.99 ± 0.01 |
| N ii 1083 | −30, 30 | 44 ± 3 | 13.69 ± 0.01∗ |
| S ii 1250 | −30, 30 | 22 ± 3 | 14.51 ± 0.02 |
| S ii 1253 | −30, 30 | 49 ± 3 | 14.57 ± 0.01 |
| S ii 1259 | −30, 30 | 59 ± 3 | 14.53 ± 0.01 |
| C ii 1036 | −30, 30 | 180 ± 3 | >14.72 |
| C ii 1334 | −30, 30 | 243 ± 3 | >14.65 |
| C iii 977 | −30, 30 | 200 ± 3 | >14.17 |
| Ar i 1048 | −30, 30 | 24 ± 3 | 13.05 ± 0.02∗ |
| Si ii 1260 | −30, 30 | 241 ± 3 | >13.85 |
| Si ii 1193 | −30, 30 | 207 ± 3 | >14.06 |
| Si ii 1190 | −30, 30 | 179 ± 4 | >14.27 |
| Si ii 1526 | −30, 30 | 220 ± 3 | >14.52 |
| Si ii 1304 | −30, 30 | 173 ± 3 | >14.59 |
| Si ii 1808 | −30, 30 | 54 ± 3 | 14.99 ± 0.01∗ |
| Mg ii 2796 | −30, 30 | 505 ± 3 | >13.60 |
| Mg ii 2803 | −30, 30 | 494 ± 4 | >13.92 |
| Zn ii 2026 | −30, 30 | 12 ± 3 | 11.83 ± 0.04 |
| Cr ii 2056 | −15, 15 | 21 ± 3 | 12.76 ± 0.02 |
| Cr ii 2062 | −15, 15 | 20 ± 3 | 12.87 ± 0.02 |
| Cr ii 2066 | −15, 15 | 10 ± 3 | 12.74 ± 0.03 |
| Fe ii 1144 | −30, 30 | 119 ± 3 | >14.34 |
| Fe ii 1608 | −30, 30 | 161 ± 3 | >14.51 |
| Fe iii 1122 | − 5, 22 | 21 ± 3 | 13.58 ± 0.01∗ |
| Al iii 1854 | −20, 20 | 56 ± 3 | 12.59 ± 0.01 |
| Al iii 1862 | −20, 20 | 30 ± 3 | 12.60 ± 0.01 |
| Si iii 1206 | −30, 30 | 249 ± 3 | >13.75 |
Notes.
Velocity range used in AOD integration, relative to zabs = 2.47621. The default is − 30 to 30 km s-1, but this is reduced when necessary to avoid blends.
Rest-frame equivalent width, with error that includes statistical and continuum-placement contributions combined in quadrature with a 2.5 mÅ error accounting for the uncertainties in the velocity integration range.
Apparent column density. Lower limit given if line is saturated. Errors include statistical and continuum-placement contributions combined in quadrature with a 0.01 dex error accounting for the uncertainties in the velocity integration range. Entries marked ∗ are potentially blended and should be treated with caution.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.