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%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Culver, R.B. and Ianna, P.A.: 1976, Publ. Astron. Soc. Pac.88, 41.
Culver, R.B., Ianna, P.A., and Franz, O.G.: 1977, Publ. Astron. Soc. Pac.89, 397.
Culver, R.B. and Ianna, P.A.: 1980, Publ. Astron. Soc. Pac.92, 829.
Deupree, R.G. and Cole, P.W.: 1983, Astrophys. J.269, 676.
Dominy, J.F. and Lambert, P.L.: 1983, Astrophys. J.270, 180.
MacConnell, D.J., Frye, R.L. and Upgren, A.R.: 1972, Astron. J.77, 384.
McClure, R.D.: 1983, Astrophys. J.268, 264.
Nys, O.: 1987, Private Communication.
Worley, C.: 1987, Private Communication.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Culver, R.B., Ianna, P.A. The frequency of wide binaries among the southern barium stars. Astrophys Space Sci 142, 199–201 (1988). https://doi.org/10.1007/BF00656205
Issue Date:
DOI: https://doi.org/10.1007/BF00656205