出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The detailed chemical abundance patterns of barium stars HD204075 and HD101013 are used
for investigations of heaviest s-process elements. Special attention is devoted to elements with
Z>70, up to Pb. Spectrum synthesis method is used for abundance calculations. High resolution
spectra were obtained at 2.7 meter telescope of McDonald observatory (spectral resolution
R=60,000, signal to noise ratio S/N>400) and VLT (R=80,000, S/N>400). CNO and Fe abundances
are found for HD204075 and HD101013. Heavy (Z64) elements abundances are found
for HD204075. The results of previous investigations of HD204075 and our data is in good aggrement
with s-process enriched pattern. Our estimates show that the abundances of Z64 elements
in HD101013 are significantly higher than in HD204075.
