Can a barium star be produced by wind accretion in a detached binary?

Details Can a barium star be produced by wind accretion in a detached binary? Can a barium star be produced by wind accretion in a detached binary?

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...205..155b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 205, no. 1-2, Oct. 1988, p. 155-163. Research supported by the Institut pour l

Astronomy and Astrophysics

Astrophysics

102

Barium, Binary Stars, Metallic Stars, Roche Limit, Stellar Winds, Accretion Disks, Asymptotic Giant Branch Stars, Planetary Nebulae, Stellar Mass Ejection, White Dwarf Stars

Scientific paper

Although Roche lobe overflow scenarios are usually quoted in relation with barium stars the authors show that a wind accretion model is better suited for explaining the barium phenomenon. This model assumes that barium stars result from the accretion of part of the matter ejected through a wind and a planetary nebula by a heavy element-rich asymptotic giant branch star, the system remaining always detached. In this first, exploratory study, a very simple, semi-analytical algorithm is used. The results of the model are applied to the system ζ Capricorni, for which a relatively good agreement is found.

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