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Table 5

Observed electron temperature indicators in the nebulae.

Ion Ioniz. Lines Obs. Ratio Te(K) Obs. Ratio Te(K) Obs. Ratio Te(K) Obs. Ratio Te(K)
Pot.(eV) Used NGC 1535 NGC 1535 Tc1 Tc1 He2-108 He2-108 NGC 6629 NGC 6629

[N ii] 14.5 5577/6584 0.0114 9300
[S iii] 23.3 6312/18.7 0.102 13 000 0.0337 9100 0.029: 8700:
[Ar iii] 27.6 7135/8.99 1.9 14 000 0.888 9000 0.60 8000 1.0 8 500
[Ar iii] 27.6 7135/5192 190 9000
[O iii] 35.1 4363/5007 0.0105 11 800 0.00446 9000 0.0055 9500 0.0041 8700
[O iii] 35.1 1663/5007 0.0092 10 700
[Ne iii] 41.0 3868/15.5 1.21 12 200 0.285 8200 0.42 8900

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