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Table 10
Comparative Cloudy photoionization modelling of F34#1.
| Species | λ (Å) | Flux & | Model | Model | Model | Model | Model | Model | Model | Model |
| error | O + 0.2 | O – 0.2 | TBB + 10 kK | TBB – 10 kK | Ne × 2.0 | Ne × 0.5 | Mod. atmos. | |||
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| [O II] | 3727 | 86 ± 9 | 89 | 85 | 88 | 87 | 60 | 49 | 144 | 85 |
| [Ne III] | 3868 | 93 ± 6 | 91 | 92 | 93 | 92 | 95 | 92 | 94 | 96 |
| He II | 4686 | 2 ± 2 | 2 | 2 | 4 | 4 | 1 | 2 | 4 | 0 |
| Hβ | 4861 | 100 ± 0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| [O III] | 4959 | 393 ± 15 | 384 | 391 | 384 | 393 | 248 | 385 | 387 | 390 |
| [O III] | 5007 | 1164 ± 41 | 1156 | 1177 | 1157 | 1183 | 747 | 1157 | 1166 | 1174 |
| Hα | 6562 | 283 ± 12 | 288 | 290 | 287 | 286 | 286 | 287 | 288 | 287 |
| [N II] | 6583 | 104 ± 6 | 104 | 104 | 104 | 104 | 103 | 104 | 105 | 103 |
| [Ar III] | 7133 | 4 ± 3 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 4 |
| [O II] | 7325 | 4 ± 3 | 17 | 16 | 17 | 17 | 8 | 16 | 17 | 14 |
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| Model input | ||||||||||
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| TBB(kK) | 71 | 68 | 78 | 81 | 61 | 67.5 | 80 | 701 | ||
| NH (cm-3) | 8500 | 10 000 | 7500 | 8500 | 8500 | 17 000 | 4250 | 7000 | ||
| 12 + log(He/H) | 11.06 | 11.06 | 11.06 | 10.90 | 11.30 | 11.06 | 10.90 | 11.20 | ||
| 12 + log(C) | 8.60 | 8.50 | 8.40 | 8.80 | 8.50 | 8.60 | 8.30 | 8.20 | ||
| 12 + log(N) | 8.25 | 8.38 | 8.13 | 8.16 | 8.50 | 8.40 | 8.03 | 8.18 | ||
| 12 + log(O) | 8.73 | 8.93 | 8.53 | 8.60 | 9.00 | 8.78 | 8.54 | 8.60 | ||
| 12 + log(Ne) | 8.00 | 8.23 | 7.78 | 7.84 | 8.60 | 8.07 | 7.77 | 7.88 | ||
| 12 + log(Ar) | 5.65 | 5.85 | 5.55 | 5.60 | 5.90 | 6.65 | 5.55 | 5.60 | ||
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| FoM | 6.44 | 5.79 | 6.48 | 6.74 | 26.62 | 10.20 | 12.90 | 5.30 | ||
Notes. S abundance fixed at 12 + log(S/H) = 6.55.
(1)
Model atmosphere: PG1159 atmosphere with T ∗ = 70 000 K and log g = 7.00 from Rauch (2003).
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