Analysis of chemical abundances in the barium stars

Details Analysis of chemical abundances in the barium stars Analysis of chemical abundances in the barium stars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007smma.conf..178p&link_type=abstract

Spectroscopic methods in modern astrophysics. Proceedings of the conference held 13-15 September 2006, Moscow, Russia. Eds. L. M

Astronomy and Astrophysics

Astrophysics

Scientific paper

Chemical abundances in the atmospheres of barium stars based on the model atmosphere method and high-resolution spectra are presented. Comparison of chemical composition of the stars of various subgroups (normal red giants, mild and classical barium stars) is executed. We conclude, that the mild and classical barium stars are different objects by the nature: mild barium stars are single red giants at the later stage of evolution compared to that for the normal red giants; classical barium stars are the components of binary systems and the origin of overabundance of s-elements is connected with a more evolved component.

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