Open Access
Table D.1
Parameters used to determine the column density of the C18O and N2H+ molecules from Eq. (D.1).
| Parameter | N2H+ | C18O |
|---|---|---|
| ν (MHz) | 93 176.2595(⋆) | 219 560.3541 |
| Eu (K) | 4.47172 | 15.8058 |
| μ (Debye) | 3.40 | 0.11049 |
| B0 (MHz) | 46 586.87 | 54 891.42 |
| Ri |  |
1 |
Notes. All values were obtained from the CDMS (Endres et al. 2016). (⋆) The N2H+ column density is determined from the isolated hyperfine component (101 − 012).
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