Paper:	A Study on the Revised R23 − P Method for Metallicity Estimates Based on ∼20,000 SDSS Galaxies
Volume:	373, The Central Engine of Active Galactic Nuclei
Page:	686
Authors:	Yin, S.Y.; Liang, Y.C.; Zhang, B.
Abstract:	We select ~20,000 metal-rich star-forming galaxies from the SDSS DR2 to study the R23 − P method suggested by Pilyugin et al. for metallicity estimates. The oxygen abundance derived from their revised R23 − P method is ~0.19 dex lower than those derived from the previous one, and ~0.60 dex lower than the Bayesian abundances obtained by the MPA/JHU group. These abundance discrepancies strongly correlate with the P parameter and weakly depend on the log(R23) parameter.

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