The frequency of wide binaries among the southern barium stars

Details The frequency of wide binaries among the southern barium stars The frequency of wide binaries among the southern barium stars

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.142..199c&link_type=abstract

(IAU, Colloquium on Wide Components in Double and Multiple Stars, 97th, Brussels, Belgium, June 8-13, 1987) Astrophysics and Spa

Astronomy and Astrophysics

Astrophysics

Barium, Binary Stars, Metallic Stars, Stellar Evolution, Visible Spectrum, Companion Stars, Dwarf Stars

Scientific paper

All of the barium and marginal barium stars in the 1972 MacConnell, Frey, and Upgren list of such objects which are located south of the celestial equator were examined for visual duplicity. Over 200 objects were observed, and a total of six possible candidates for wide pair visual binaries were found. Of these, four are most likely optical in nature. These data suggest that the incidence of wide binaries among barium stars is of the order of 1%.

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