Type II Cepheids abundances
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The chemical composition of 28 Population II Cepheids and one RR Lyrae variable has been studied using high-resolution spectra. The chemical composition of W Vir variable stars...
本研究利用高分辨率光谱(high-resolution spectra),对28颗第二型造父变星(Population II Cepheids)与1颗天琴座RR型变星(RR Lyrae variable)的化学成分展开了分析。针对室女座W型变星(W Vir variable stars)的化学成分……



