Abundance Analysis of the Pulsating Primary Component of the Algol-Type System AS Eridani

We carried out an abundance analysis of the pulsating primary component of an Algol-type binary system, AS Eridani. The spectral data obtained with the Subaru/HDS were used, and the abundances of six elements (Mg, Si, Ca, Ti, Cr, and Fe) were determined relative to an A3 V spectroscopic standard star, ˛ PsA. An under-abundance of iron (� 0.66 dex) has been established. Other elements, Mg through Cr, are also under-abundant ( �� 0.4 dex). No difference in abundances at different orbital phases was found. The physical relation between the metallicities and the pulsational characteristics is discussed.