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Astrophysics and Space Science

, Volume 76, Issue 1, pp 23–33 | Cite as

A note on the statistics of early-type close binaries

  • R. E. Wilson
  • J. B. Rafert
Article

Abstract

We define adegree of contact index,Ic, and give its frequency diagram for 16 early-type close binaries. The eventual objective is to see whether the numbers of such systems are continuous or discontinuous across marginal contact. Data for four of the systems-TU Mus, V499 Sco, δ Pic, and SZ Cam-are from new photometric analyses, whose results are also given. Present results suggest that there is continuity in frequency across marginal contact, although one would like to include more binaries as further observations become available. An interesting point is that the only two systems in the bin of largestIc are known to be in the rapid phase of mass transfer.

Keywords

Mass Transfer Interesting Point Rapid Phase Close Binary Eventual Objective 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Company 1981

Authors and Affiliations

  • R. E. Wilson
    • 1
  • J. B. Rafert
    • 2
  1. 1.Department of AstronomyUniversity of Florida and Max Planck Institute for Phycis and AstrophysicsUSA
  2. 2.Department of Physics and AstronomyAppalachian State UniversityBoone

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