HOMERUN: A new approach to photoionization modeling - I. Reproducing observed emission lines with percent accuracy and obtaining accurate physical properties of the ionized gas

Open Access

Fig. 11.

Comparison between our metallicity estimates of HII regions in the Galaxy, the metallicity gradient from the T_e abundances of HII regions (Arellano-Córdova et al. 2021), the Cepheids (Mollá et al. 2019), and intermediate age open clusters (Magrini et al. 2023). The blue line surrounded by the blue shaded area represents the linear fit, with uncertainties, to all our metallicity estimates.

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