Table 2.
C/O and N/O ratios used for the emission line modelling.
| Model | Ref. | log(O/H)+12 | log(C/O) | log(N/O) |
|---|---|---|---|---|
| Solar | CLOUDY | 8.69 | −0.30 | −0.76 |
| High-z | J23, I23 | 7.39 | −1.01 | −0.40 |
| Dwarfs | B19 | 7.85 | −0.71 | −1.46 |
| Halo | N14 | 8.02 | −0.65 | none |
Notes. The first and second columns show the models and references used (CLOUDY: default solar abundances, J23: Jones et al. 2023, I23: Isobe et al. 2023, B19: Berg et al. 2019, N14: Nissen et al. 2014). The third, fourth, and fifth columns show the oxygen abundance, the C/O ratio, and the N/O ratio.
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