Table 2
Model parameters for the diffuse cloud in the Scutum arm.
| Molecule | N tot | v LSR | FWHM | T ex |
| [cm-2] | [km s-1] | [km s-1] | [K] | |
|
|
||||
| H13CO+ | 6.2 ×1011 | 27.0 | 3.5 | 2.73 |
| c-C3H2-o | 8.1 ×1012 | 26.8 | 3.5 | 2.73 |
| CH3OH | 6.2 ×1013 | 26.6 | 5.0 | 2.73 |
| 13CH3OH | <3.9 ×1012 | 26.6 | 5.0 | 2.73 |
| CH3CN | 1.4 ×1013 | 26.2 | 5.0 | 4.2 |
| CH3CHO | <1.5 ×1013 | 26.7 | 4.3 | 3.1 |
| HC3N | <2.5 ×1013 | 26.7 | 4.3 | 7.3 |
| NH2CHO | <4.0 ×1012 | 26.7 | 4.3 | 4.3 |
Notes. We assumed the same excitation temperatures as in Table 1.
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