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Constraints on stellar evolution theory from precise eclipsing binary data

Published online by Cambridge University Press:  04 August 2017

J. Andersen ,
J.V. Clausen ,
H.E. J⊘rgensen  and
B. Nordström
J. Andersen
Affiliation:
Copenhagen University Observatory, Denmark
J.V. Clausen
Affiliation:
Copenhagen University Observatory, Denmark
H.E. J⊘rgensen
Affiliation:
Copenhagen University Observatory, Denmark
B. Nordström
Affiliation:
Copenhagen University Observatory, Denmark

Extract

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Previous attempts at a detailed confrontation of eclipsing binary data with theoretical models of main-sequence evolution were faced with the choice between data of inhomogeneous (mostly low) quality for many systems (Kriz, 1969; Lacy, 1979) or accurate values of mass, radius, and temperature (or luminosity) for very few systems only (Popper et al., 1970). In addition, more detailed and homogeneous stellar structure calculations for several compositions were needed. Since 1972, a coordinated photometric and spectroscopic programme at our institute contributes to building a sufficient observational basis for such a test. Among published standard models for the range 1–10 M⊙, Hejlesen's (1980) are the most extensive, agree well with other standard models, and are presented in a format suitable for comparison with binary data. Here we can only outline a few salient new results from this study.

Type
III. BINARITY, PULSATION, ROTATION AND MIXING
Information
Symposium - International Astronomical Union , Volume 105: Observational Tests of the Stellar Evolution Theory , 1984 , pp. 391 - 394
Copyright
Copyright © Reidel 1984 

References

Hejlesen, P.M.: 1980, Astron. Astrophys. Suppl. Ser. 39, 347 Google Scholar
Křiž, S.: 1969, Bull. Ast. Inst. Csl. 20, 202 Google Scholar
Lacy, C.H.: 1979, Ap. J. 228, 817 CrossRefGoogle Scholar
Popper, D.M.: 1980, Ann. Rev. Astron. Astrophys. 18, 115 CrossRefGoogle Scholar
Popper, D.M., J⊘rgensen, H.E., Morton, D.C., Leckrone, D.S.: 1970, Ap. J. 161, L 57.CrossRefGoogle Scholar