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Statistics of Double and Multiple Stars in the Solar Neighborhood1

  • Victor V. Orlov (a1) and Oleg A. Titov (a2)
Abstract

We study the multiplicity function and physical properties of single, double, and multiple stellar systems in the solar neighbourhood (r < 10 pc), using a new preliminary machine–readable version of the Gliese & Jahreiss Catalogue (1991).

The ratio of (n+l)-ple to n-ple systems is a constant fraction of about 1/4 for n =1, 2, 3, 4. The luminosity function f(M) for primaries in binaries has an additional peak at M є (6m,8m) that is absent in f(M) for single stars and secondary components. A significant correlation between the absolute magnitudes M 1 and M 2 of the components in binaries takes place.

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Copyright
Footnotes
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1

The authors of this paper were unable to attend the Colloquium — eds.

Footnotes
References
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Batten, A.H. 1973, Binary and Multiple Systems of Stars, (Oxford, Pergamon Press)
Batten, A.H. & Fletcher, J.M. 1989, JRASC, 83, No. 5, 289
Batten, A.H., Fletcher, J.M., & McCarthy, D.G. 1989, Eighth Catalogue of the Orbital Elements of Spectroscopic Binary Systems, Publ. DAO, XVII
Duquennoy, A. & Mayor, M. 1991, A&A, 248, 485
Kozyrev, A.N. 1991, Izbrannye Trudy, Izd. Leningrad University, Leningrad, p. 165
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0252-9211
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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