Fig. 3.
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Fundamental metallicity relation for our galaxy sample in comparison with the MaNGA-Pipe3D galaxy catalogues for the SDSS seventeenth data-release (Sánchez et al. 2022), assuming four different metallicity calibrations: O3N2 and N2 from Curti et al. (2020), O3N2 and N2 from Marino et al. (2013). The uncertainties in metallicity of our sample are smaller than the symbol sizes due to the high S/N of our integrated spectra.
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