The problem of heavy-element synthesis in barium stars

Details The problem of heavy-element synthesis in barium stars The problem of heavy-element synthesis in barium stars

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..613z&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, July 1991, p. 613-618. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

Barium, Giant Stars, Metallic Stars, Stellar Atmospheres, Stellar Composition, Abundance, Europium, Nuclear Reactions, Stellar Models, Strontium

Scientific paper

An abundance analysis of the atmospheres of 33 stars, barium and normal G-K giants, is carried out using the differential model atmosphere method. Twenty barium stars which reveal a considerable enhancement of s-process elements exhibit slight depletions (about 0.2 dex) of Na, Mg, Mn, and Co; solar abundances for Si to Ni; and enhanced abundances (up to 1.5 dex) for Y to Eu. Mean parameters of the atmospheres are determined.

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