2007/01/09 by S. Y. Yin, Yuan Liang, Yin, S. Y. +5
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0701234
Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", eds. L. C. Ho and J.-M. Wang (San Francisco: ASP)
arxiv created 2007/01/09 · openalex publication_date 2007/01/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.