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25 January 2025

» arxiv » astro-ph/0701234

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The study about the revised R23-P method for metallicity estimates based on ~20,000 SDSS galaxies
S. Y. Yin ; Y. C. Liang ; B. Zhang ;
Date:	9 Jan 2007
Abstract:	We select ~20000 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 abundances derived from their revised R23-P method are ~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.
Source:	arXiv, astro-ph/0701234
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