Table 1
Parameters for fitted “two-layer” model.
| Line | Tr | τ0 | Vin | σv |
| (K) | (km s-1) | (km s-1) | ||
|
|
||||
| CH3OCHO-E | 44 ± 3 | 0.48 ± 0.04 | 0.49 ± 0.02 | 0.30 ± 0.02 |
| CH3OCHO-A | 46 ± 3 | 0.45 ± 0.04 | 0.49 ± 0.02 | 0.31 ± 0.01 |
| H2CCO | 60 ± 10 | 0.33 ± 0.05 | 0.51 ± 0.07 | 0.39 ± 0.03 |
Notes. Vin is the infall velocity of the layers. τ0 is the peak optical depth of each layer. σv is the layer velocity dispersion. Tr is the rear layer excitation temperature. Tf is the front layer excitation temperature. The following parameters are kept fixed: VLSR = 3.4 km s-1, Tc = 20 K, Tf = 3 K, and Φ = 0.3. See Appendix A for a description.
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.