Table 2
Best-fit model parameters.
| MM1 II | MM2 I | MM3 I | ||||
|---|---|---|---|---|---|---|
| vLSR (km s−1) | [−6.7] | [−9.0] | [−9.0] | |||
| FWHM (km s−1) | [3] | [3.5] | [3] | |||
| θs (′′) | [1] | [1] | [1] | |||
| Tex | Ns | Tex | Ns | Tex | Ns | |
| (K) | (cm−2) | (K) | (cm−2) | (K) | (cm−2) | |
| CH2NH | [215] | ≤5.2 × 1016 | [165] | ≤5.0 × 1016 | [120] | ≤1015 |
| CH3NH2 | 340 ± 60 | (2.7 ± 0.4) × 1017 | 230 ± 30 | (6.2 ± 0.9) × 1016 | 220 ± 30 | (3.0 ± 0.6) × 1015 |
| 13CH3CN | 70 ± 10 | (3.4 ± 1.0) × 1015 | 80 ± 25 | (1.4 ± 0.5) × 1015 | 90 ± 15 | (9.0 ± 0.8) × 1013 |
| CH3C15N | 110 ± 50 | (3.3 ± 0.5) × 1014 | [80] | (1.8 ± 0.4) × 1014 | 70 ± 45 | (2.3 ± 0.7) × 1013 |
| NH2CHO | [215] | (7.0 ± 1.7) × 1015 | [165] | (7.6 ± 0.8) × 1015 | [120] | ≤5.0 × 1013 |
NH CHOa |
[215] | ≤2.0 × 1015 | [165] | ≤5.0 × 1014 | – | – |
Notes. Values in square brackets are fixed. Excitation temperatures for CH3NH2 and CH3CN are the values of the best-fit respective models while Tex for CH2NH and NH2CHO is fixed at the best-fit model value derived for CH3OH (Bøgelund et al. 2018). In the MM2 region, the excitation temperature for CH3 C15N is not well constrained and is therefore adopted from 13 CH3CN. Listed uncertainties are the standard deviation of models with χ2 within 1σ of the best-fit model.
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.