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Table 5.
Physical conditions, Te and Ne, and abundances derived for individual regions.
| Region | A1 | A2 | B1 | B2 | C | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Te (K) | ||||||||||
| [O III] | 14 800 | b | 12 200 | d | ||||||
| [S III] | 15 000 | b | ||||||||
| [N II] | 10 100 | b | 10 100 | c | 26 500 | b | 13 700 | d | ||
| [C I] | 6310 | c | ||||||||
| Adopted | 10 100 | 10 100 | 14 900 | 15 000 | 10 000 | |||||
| Ne (cm−3) | ||||||||||
| [O II] | 585 | a | 417 | a | 357 | b | ||||
| [S II] | 503 | a | 414 | a | 364 | a | ||||
| [N I] | 188 | b | 323 | a | 129 | b | ||||
| Adopted | 544 | 415 | 600 | 200 | 360 | |||||
| Ionic abundances | ||||||||||
| N+/H+ | 2.17E–4 | a | 1.57E–4 | a | 2.12E–5 | b | 2.69E–5 | a | 7.79E–5 | a |
| O+/H+ | 1.08E–4 | a | 8.83E–5 | a | 1.90E–4 | b | ||||
| O++/H+ | 2.39E–6 | c | 9.89E–5 | a | 1.66E–4 | a | 2.10E–5 | b | ||
| Ne++/H+ | 1.49E–5 | d | 5.94E–5 | a | 1.05E–4 | b | ||||
| S+/H+ | 5.87E–6 | a | 5.42E–6 | a | 4.26E–6 | a | ||||
| S++/H+ | 3.53E–7 | b | 2.44E–7 | c | 2.55E–6 | a | 3.27E–6 | a | 4.90E–7 | c |
| Ar++/H+ | 1.21E–6 | a | 1.64E–6 | a | ||||||
| Elemental abundances | ||||||||||
| He/H | 0.229 | 0.228 | 0.259 | 0.391 | ||||||
| N/H | 2.17E–4 | 1.61E–4 | 8.65E–5 | |||||||
| O/H | 1.08E–4 | 9.07E–5 | 9.89E–5 | 1.66E–4 | 2.11E–4 | |||||
| Ne/H | 5.94E–5 | 1.05E–4 | ||||||||
| S/H | 6.22E–6 | 5.67E–6 | 2.55E–6 | 3.27E–6 | 4.75E–6 | |||||
| Ar/H | 1.21E–6 | 1.64E–6 | ||||||||
Notes. The letters next to the physical quantities indicate the quality of the original flux measurements of the relevant lines: a, flux accurate to within 10%; b, error between 10 and 30%; c, error greater than 30%; d, line marginally detected.
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