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Table 4.
The deuterium fractionations for each GMC region.
| Region | DCN/HCN | DCO+/HCO+ | N2D+/N2H+ | Tex | FWHM | 12C/13C |
|---|---|---|---|---|---|---|
| (×10−4) | (×10−4) | (×10−3) | (K) | (km s−1) | ||
| GMC-3 | 6.43 ± 0.74 | (< 1.51) | (< 4.47) | 50 ± 5 | 74 | 48 ± 4 |
| GMC-4 | 5.58 ± 1.06 | (< 0.8) | (< 2.51) | 60 ± 7 | 74 | 57 ± 10 |
| GMC-6 | 10.3 ± 0.1 | (< 1.08) | (< 3.02) | 98 ± 4 | 74 | 41 ± 2 |
| GMC-7 | 6.75 ± 1.23 | (< 5.49) | (< 4.17) | 61 ± 11 | 79 | 44 ± 5 |
Notes. Results are shown for DCN as well as the 1 sigma upper limits obtained for DCO+ and N2D+ as a result of the LTE fitting conducted using MADCUBA, the Tex for each region is also provided.
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