Fig. 7
O/H calculated with the direct method and other empirical methods versus O/H calculated by detailed modelling. From Kakazu et al.: black circles (direct method); black pluses (Yin et al. method). From Xia et al.: blue crosses (calibration); green symbols refer to the Henry et al. data: large symbols result from AGN models (see text). The solid line represents the 1:1 line.
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