2024
DOI: 10.1051/0004-6361/202451007
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Metallicity calibrations based on auroral lines from PHANGS–MUSE data

Matilde Brazzini,
Francesco Belfiore,
Michele Ginolfi
et al.

Abstract: We present a chemical analysis of selected regions from the PHANGS-MUSE nebular catalogue. Our intent is to empirically re-calibrate strong-line diagnostics of gas-phase metallicity, applicable across a wide range of metallicities within nearby star-forming galaxies. To ensure reliable measurements of auroral line fluxes, we carried out a new spectral fitting procedure whereby only restricted wavelength regions around the emission lines of interest are taken into account: this assures a better fit for the stel… Show more

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