AGB stars in binaries and their progeny
Abstract
Description
It is currently admitted that an AGB star in a binary system is likely to pollute its companion with carbon- and s-process-rich matter. After the AGB star has faded into an unconspicuous white dwarf, the polluted companion enters the zoo of stars with chemical peculiarities. In this paper, the progeny of AGB stars in binary systems are identified among existing spectroscopic classes (Abell 35-like, binary post-AGB, WIRRing, dwarf Ba and C, subgiant CH, Ba, CH, S, yellow symbiotics) and their filiation is discussed from the properties of their eccentricity -- period diagrams.
Invited review at IAU Symp. 191 (AGB Stars, eds. T. Le Bertre, A. Lebre, C. Waelkens), 10 pages, 2 figures (LaTeX/paspconf.sty). Also available at: http://astro.ulb.ac.be/Htm/ps.htm
Invited review at IAU Symp. 191 (AGB Stars, eds. T. Le Bertre, A. Lebre, C. Waelkens), 10 pages, 2 figures (LaTeX/paspconf.sty). Also available at: http://astro.ulb.ac.be/Htm/ps.htm