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Table 6
Isotopologues abundance ratios toward FG0.89SW.
| Abundance ratios | @7 mm | @3 mm |
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| DCO+/HCO+ | <7.1 × 10-4 | – |
| DCN/HCN | <8.4 × 10-4 | – |
| DNC/HNC | – | <0.015 |
| DCO+/H13CO+ | <0.015 | – |
| DCN/H13CN | <0.030 | – |
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| HCO+/H13CO+ | 21.2 ± 0.2 | 28 ± 3 |
| HCN/H13CN | 36.3 ± 0.5 |
|
| HNC/HN13C | 47 ± 2 | 27 ± 3 |
H2CO/H CO |
>173 (3σ) | – |
| C2H/13CCH | >58 (3σ) | – |
| C2H/C13CH | >43 (3σ) | – |
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| HCN/HC15N | 192 ± 11 | – |
| HNC/H15NC |
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| H13CN/HC15N | 5.3 ± 0.3 | 4.2 ± 0.3 |
| HN13C/H15NC |
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| HCO+/HC18O+ | 48 ± 1 |
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| H13CO+/HC18O+ | 2.29 ± 0.05 | 2.01 ± 0.07 |
| HC18O+/HC17O+ |
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| 28SiO/29SiO |
|
– |
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