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Table 3
Emission lines detected from the MUSE data in our sample of PNe.
| Emission lines | NGC 3242 | NGC 6153 | Hf 2–2 | M 1–42 | NGC 6778 | NGC 7009 | NGC 3132 | IC 418 | NGC 6369 | NGC 6563 | IC 4406 | Tc 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [Fe III] 4658 Å | X | – | – | ✓ | – | ✓ | X | X | X | X | X | X |
| [Fe III] 4701 Å | X | – | – | – | – | ✓ | X | X | X | X | X | X |
| [Fe III] 4881 Å | ✓ | ✓ | – | – | – | ✓ | ✓ | ✓ | – | – | – | ✓ |
| [Fe III] 5270 Å | ✓ | ✓ | – | – | – | ✓ | ✓ | ✓ | – | – | – | ✓ |
| [Fe II] 5158 Å | – | – | – | – | – | ✓ | ✓ | ✓ | – | – | – | ✓ |
| [Fe II] 5262 Å | – | – | – | – | – | – | ✓ | ✓ | – | – | – | – |
| [Fe II] 7155 Å | ✓ | ✓ | – | – | – | ✓ | ✓ | ✓ | ✓ | – | ✓ | ✓ |
| [Fe II] 8617 Å | ✓ | ✓ | – | – | – | ✓ | ✓ | ✓ | ✓ | – | ✓ | ✓ |
| [Ni II] 7378 Å | ✓ | ✓ | – | – | – | ✓ | ✓ | ✓ | ✓ | – | ✓ | ✓ |
| [Ca II] 7291 Å | – | – | – | – | – | – | ? | ✓ | – | – | – | ✓ |
| [C I] 8727 Å | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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