Statistical study of semi-detached and near-contact semi-detached binaries

Details Statistical study of semi-detached and near-contact semi-detached binaries Statistical study of semi-detached and near-contact semi-detached binaries

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989acasn..30..225z&link_type=abstract

(Acta Astronomica Sinica, vol. 30, no. 3, 1989, p. 225-235) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 14, March

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Light Curve, Statistical Analysis, Stellar Evolution, Angular Momentum, Histograms, Radii, Roche Limit, Stellar Mass Ejection

Scientific paper

A statistical study was made of 107 semidetached with combined light curve solutions. An empirical period-dependent mass-radius relation was derived, thereby revealing the impossibility of having evolved semidetached systems with very short periods. Statistically, the near-contact semidetached systems have the common properties of nearly equal mass densities of the components, larger mass-ratios, shorter periods and smaller specific angular momenta, and their A- F-type secondaries generally have greater densities than the secondaries of classical Algol systems of the same spectral types. A detailed discussion is also made in this paper on the evolution of near-contact semidetached binaries.

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