Fig. 7
Comparison of electron temperatures te(O iii) (te = 10-4 Te) derived from [O iii]λ4363/(λ4959 + λ5007) and te(O ii) obtained from [O ii]λ3727/(λ7320 + λ7330) emission-line ratios. VLT/UVES and FORS data are shown by red stars and blue filled circles, respectively. The thick blue lines represent the te(O ii) – te(O iii) relations from Izotov et al. (2006). (A color version of this figure is available in the online journal.)
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