Open Access
Table 1.
Column densities of molecular hydrogen at zabs = 2.34 towards J 2140-0321 derived in this work (X-shooter) and by Noterdaeme et al. (2015a; UVES).
| Rotational level (J) | log N(H2, J) |
|
|---|---|---|
| X-shooter | UVES | |
| 0 | 19.95 ± 0.01 | 19.84 ± 0.09 |
| 1 | 19.78 ± 0.01 | 19.81 ± 0.04 |
| 2 | 17.81 ± 0.08 | 17.96 ± 0.14 |
| 3 | 17.67 ± 0.09 | 17.76 ± 0.40 |
| 4 | 16.04 ± 0.11 | 15.88 ± 0.26 |
| 5 | 15.55 ± 0.09 | 15.17 ± 0.16 |
| Total | 20.18 ± 0.01 | 20.13 ± 0.07 |
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