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Table 3
Assumed Tex for reported column density, expected range of Tex, and total error margins (factor) of the reported column density at the lower/upper limits of the expected Tex range.
| Species | Line | Assumed | Expected | Error factors |
| mode | Tex [K] | Tex [K] | col. density | |
|
|
||||
| CH+ | emission | 38–44 | 19–75 | 1.8 1.2 |
| CH+ | absorption | 3–9 | 5–19 | 0.8 1.4 |
| OH+ | emission | 38 | 9–75 | 0.8 2.5 |
| OH+ | absorption | 3–9 | 3–19 | 0.8 1.4 |
| H2O+ | absorption | 3–9 | 3–19 | 0.8 1.5 |
| H3O+ | emission | 225 | 75–225 | 1.6 0.8 |
| SH+ | emission | 38 | 19–75 | 0.8 1.5 |
| HCO+ | emission | 38 | 19–75 | 5.7 0.5 |
| C+ | emission | 38 | 19–75 | 1.3 0.4 |
| CH | emission | 38 | 19–75 | 0.8 1.4 |
| CH | absorption | 6 | 3–9 | 0.85 1.2 |
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