Fig. 21
Maps of total O/H+ abundance for three ionization correction factors adjusting for the presence of O+++. Left: the ’classical’ scheme of Torres-Peimbert & Peimbert (1977); centre: the corrected classical ICF advocated by Kingsburgh & Barlow (1994); right: the model-based approach of Delgado-Inglada et al. (2014). The log F(Hβ) surface brightness contours are as in Fig. 7.
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