The frequency of wide binaries among the southern barium stars |
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| Authors: | Roger B Culver Philip A Ianna |
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| Institution: | (1) Colorado State University, Fort Collins, Colorado, USA;(2) The University of Virginia, Charlottesville, Virginia, USA |
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| Abstract: | Summary All of the barium and marginal barium stars in the 1972 MacConnell, Frey, and Upgren (1972: MFU) 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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