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Table 2
Column density estimates for different excitation temperatures.
| T ex | N DCO+ | N DCN | N N2D+ |
| (cm-2) | (cm-2) | (cm-2) | |
|
|
|||
| 10 K | – | – | 2.5 ± 0.3 × 1011 |
| 25 K | 1.68 ± 0.01 × 1012 | 2.9 ± 0.2 × 1011 | 1.6 ± 0.2 × 1011 |
| 80 K | 2.56 ± 0.01 × 1012 | 5.2 ± 0.3 × 1011 | – |
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