Table 4.
Averaged elemental abundances of Galactic PNe.
| PN G | log(C/H) + 12 | log(N/H) + 12 | log(O/H) + 12 | Prog. age |
|---|---|---|---|---|
| 002.7−04.8 | 9.02 ± 0.20 | 8.68 ± 0.27 | 8.68 ± 0.20 | OPPN |
| 006.1+08.3 | 8.58 ± 0.20 | 7.92 ± 0.17 | 8.57 ± 0.20 | OPPN |
| 010.1+00.7 | 8.23 ± 0.20 | 8.65 ± 0.20 | 8.26 ± 0.20 | YPPN |
Notes. Elemental abundances have been averaged from all references included in Stanghellini & Haywood (2018), Tsamis et al. (2003), Miller et al. (2019), McNabb et al. (2016), and Delgado-Inglada et al. (2015); the age of the PPN progenitor (OPPN = old, YPPN = young) is defined according to Stanghellini & Haywood (2018) and Ventura et al. (2016), see text. The full table is available at the CDS.
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