About the chemical composition of δ Scuti: the prototype of the class of pulsating variables

We derived the chemical abundances in the photosphere of δ Scuti, the prototype of the class of pulsating variables, from the analysis of a spectrum obtained at the Terskol Observatory 2-m telescope with a resolution R=52000 and S/N=250. VLT and IUE spectra were also used. The abundance pattern of δ Sct consists of 49 chemical elements. The abundances of Be, P, Ge, Nb, Mo, Ru, Er, Tb, Dy, Tm, Yb, Lu, Hf, Ta, Os, Pt, and Th were not investigated previously. The lines of third spectra of Pr and Nd also are investigated for the first time. The abundances of heavy elements show overabundances with respect to the Sun up to 1 dex. The abundance pattern of δ Sct is similar to that of the Am-Fm stars.