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CNO and F abundances in the barium star HD 123396

Alves-Brito, A; Karakas, Amanda; Yong, David; Melendez, Jorge; Vasquez, S

Description

Context. Barium stars are moderately rare, chemically peculiar objects, which are believed to be the result of the pollution of an otherwise normal star by material from an evolved companion on the asymptotic giant branch (AGB). Aims. We aim to derive carbon, nitrogen, oxygen, and fluorine abundances for the first time from the infrared spectra of the barium red giant star HD 123396 to quantitatively test AGB nucleosynthesis models for producing barium stars via mass accretion. Methods....[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/50653
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201116604

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