Open Access
Table 4
Measured 12CO/13CO isotopologue ratio.
| Target name | This work | Literature | Ref. |
|---|---|---|---|
| AF Lep b | ≥15 | ||
| HR 8799 e | ≥4.2 | ||
| HR 8799 c | ≥85 | ||
| ROXs 42 B b | ≥7.6 | ||
| AB Pic b | ≥16 | ||
| HR 2562 B | ![Mathematical equation: $\[12.0_{-3.3}^{+4.5}\]$](/articles/aa/full_html/2026/04/aa57546-25/aa57546-25-eq13.png) |
||
| 2MJ0219 b | ≥360 | ||
| VHS 1256 b | ≥48 | 62 ± 2 | 1 |
| CT Cha b | ≥0.000012 | ||
| ROXs 12 b | ≥0.00033 | ||
| HIP 78530 B | ≥20 | ||
| HIP 79098 AB B | ≥28 | 52 ± 22 | 2 |
| Solar | 89 | 3 | |
| Interstellar Medium | 68 ± 15 | 4 | |
Notes. References: 1. Gandhi et al. (2023), 2. Xuan et al. (2024), 3. Anders & Grevesse (1989), 4. Milam et al. (2005).
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