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Table 7
Chemical abundances for the PNe and H ii regions in NGC 3109.
| He/H | 12 + log(O/H) | 12 + log(N/H) | 12 + log(Ne/H) | 12 + log(S/H) | 12 + log(Ar/H) | |
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| PN3 | 0.119 ± 0.032 | 8.08 ± 0.05 | 7.25 ± 0.25 | 7.31 ± 0.25 | 6.51 ± 0.29 | 5.57 ± 0.16 |
| PN4 | 0.101 ± 0.009 | 8.48 ± 0.29 | <7.80 | 7.86 ± 0.16 | – | – |
| PN9a | – | >7.97b | – | 7.23:b | – | 6.15:b |
| PN10 | 0.077 ± 0.023 | 8.36 ± 0.13 | 7.29 ± 0.23 | 7.42 ± 0.23 | 6.75 ± 0.13 | 5.63 ± 0.18 |
| PN11 | 0.098 ± 0.051 | 8.09 ± 0.05 | – | – | – | 5.55b± 0.20 |
| PN11a | 0.098 ± 0.051 | 8.20b± 0.10 | – | 7.57b± 0.10 | – | – |
| PN13 | 0.158 ± 0.074 | 8.12 ± 0.20 | 8.06 ± 0.39 | 7.02 ± 0.39 | – | – |
| PN16a | – | > 8.00 | – | – | – | – |
| PN17 | 0.088 ± 0.022 | 7.89 ± 0.11 | 7.37 ± 0.24 | 6.50 ± 0.26 | <6.56 ± 0.20 | 5.42 ± 0.32 |
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| PNe statisticsc | 0.096 ± 0.030 | 8.17 ± 0.17 | 7.49 ± 0.28 | 7.27 ± 0.30 | 6.61 ± 0.20 | 5.67± 0.12 |
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| PN20a,d | >0.029 | 7.64± 0.15 | 6.29 ± 0.20 | 6.90 ± 0.21 | 6.35 ± 0.25 | 5.69 ± 0.14 |
| H ii 4 | 0.082 ± 0.013 | >7.29 | – | 6.36 ± 0.13 | – | 5.59 ± 0.10 |
| H ii 7 | 0.082 ± 0.018 | 7.60 ± 0.11 | 6.31 ± 0.11 | 6.75 ± 0.12 | 6.29 ± 0.09 | 5.76 ± 0.10 |
| H ii 9a | 0.098 ± 0.023 | 7.80 ± 0.25 | 6.67 ± 0.10 | 7.00 ± 0.08 | 6.14 ± 0.21 | – |
| H ii 11 | 0.090 ± 0.026 | 7.67 ± 0.16 | 6.32 ± 0.21 | 6.74 ± 0.24 | 6.39 ± 0.14 | – |
| H ii 15 | 0.104 ± 0.031 | 7.80 ± 0.20 | 6.63 ± 0.15 | 6.95 ± 0.23 | 6.68 ± 0.14 | – |
| H ii 17 | 0.084 ± 0.030 | 7.72 ± 0.21 | 6.50 ± 0.22 | 6.63 ± 0.26 | – | – |
| H ii 20 | 0.108 ± 0.024 | 7.86 ± 0.15 | 6.62 ± 0.18 | 6.82 ± 0.23 | 6.48 ± 0.13 | – |
| H ii 30 | 0.082 ± 0.030 | 7.79 ± 0.27 | 6.32 ± 0.39 | 6.92 ± 0.54 | 6.41 ± 0.38 | 5.76 ± 0.41 |
| H ii 32 | 0.078 ± 0.014 | 7.66 ± 0.11 | 6.61 ± 0.11 | 6.89 ± 0.20 | 6.61 ± 0.09 | 5.86 ± 0.12 |
| H ii 37 | 0.079 ± 0.013 | 7.85 ± 0.11 | 6.36 ± 0.15 | 6.90 ± 0.15 | 6.31 ± 0.10 | – |
| H ii 40 | 0.078 ± 0.013 | 7.70 ± 0.13 | 6.31 ± 0.13 | 6.81 ± 0.14 | 6.13 ± 0.10 | – |
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| H ii statistics | 0.088 ± 0.026 | 7.74 ± 0.09 | 6.45 ± 0.14 | 6.80 ± 0.13 | 6.38 ± 0.15 | 5.73 ± 0.08 |
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