Table 3
Best-fit parameters of HOCH2CN and related species towards IRAS 16923B in the PILS data set in a 0.′′5 beam.
| Molecule | NT | Tex | [X] / [CH3OH](a) | [X] / [HNCO](a) |
|---|---|---|---|---|
| (cm−2) | (K) | |||
| HOCH2CN | ≤1.0 × 1015 | [150] | ≤1.0 × 10−4 | ≤3.3 × 10−2 |
| HOCH2CN | ≤1.0 × 1015 | [300] | ≤1.0 × 10−4 | ≤3.3 × 10−2 |
| CH2CNH | ≤1.0 × 1015 | [100] | ≤1.0 × 10−4 | ≤3.3 × 10−2 |
| CH2CNH | ≤2.0 × 1015 | [300] | ≤2.0 × 10−4 | ≤6.7 × 10−2 |
| CH(O)CN | ≤5.0 × 1014 | [100] | ≤5.0 × 10−5 | ≤1.7 × 10−2 |
| CH(O)CN | ≤5.0 × 1014 | [300] | ≤5.0 × 10−5 | ≤1.7 × 10−2 |
| NH2CH2CN | ≤1.0 × 1015 | [100] | ≤1.0 × 10−4 | ≤3.3 × 10−2 |
| NH2CH2CN | ≤5.0 × 1014 | [300] | ≤5.0 × 10−5 | ≤1.7 × 10−2 |
Notes. Values in brackets are assumed. VLSR = 2.7 km s−1 and ΔV = 1.0 km s−1. We note that some upper limit column densities are similar because the upper state energies of the lines cover only a narrow range of energies. (a) CH3OH and HNCO column densities were adopted from Jørgensen et al. (2018) and Coutens et al. (2016), respectively.
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