机译:Oxygen abundances in Cepheids
Department of Astronomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7215, United States;
Department of Astronomy and Astronomical Observatory, Odessa National University, Isaac Newton Institute of Chile, Shevchenko Park, 65014 Odessa, Ukraine;
Galaxy: abundances; line: formation; stars: abundances; stars: variables: Cepheids;