Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-20T06:32:24.574Z Has data issue: false hasContentIssue false
  • English
  • Français

Evolutionary Effects in Contact Binaries†

Published online by Cambridge University Press:  12 April 2016

H. Mauder
H. Mauder*
Affiliation:
Astronomisches Institut, Universität Tübingen

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The structure and evolution of contact binaries is an extremely difficult problem in theoretical astrophysics.Several attempts have been made to set up a satisfactory model, see e.g. Lucy,1976, Flannery, 1976, Shu, Lubow and Anderson, 1976, Robertson and Eggleton, 1977, Rahunen and Vilhu, 1977 and others. There are, roughly, two lines of sight: Shu, Lubow and Anderson postulate the existence of a contact discontinuity in one of the two components of a contact binary (DSC Theory); in this case age zero models in thermal equilibrium are possible. The other authors find that unevolved contact binaries cannot achieve thermal equilibrium; therefore, relaxation oscillations on a thermal time scale are expected (TRO Theory). For a detailed discussion of the different effects see Lucy and Wilson,1979.

Type
Part III: Evolutionary Processes in Close Binary Systems
Information
International Astronomical Union Colloquium , Volume 69: Binary and Multiple Stars as Tracers of Stellar Evolution , 1982 , pp. 275 - 278
Copyright
Copyright © Reidel 1982

Footnotes

†

Based on observations obtained at ESO/La Silla

References

Banemfeind, H, 1968, Veröff.Bamberg 8, Nr.81Google Scholar
Flannery, B.P., 1976, Ap.J. 205, 217 Google Scholar
Hejlesen, \P.M, 1980, Astr. & Astrophys. Suppl.39, 347 Google Scholar
Lucy, L.B., 1976, Ap.J. 205, 208 Google Scholar
Lucy, L.B. and Wilson, R.E., 1979, Ap.J. 231, 502 Google Scholar
Rahunen, T. and Vilhu, Q., 1977, Astr.& Astrophys.56, 99 Google Scholar
Robertson, J.A. and Eggleton, P.P., 1977, MNRAS 175, 279 Google Scholar
Shu, F.M.,Lubow, S.H. and Anderson, L., 1976, Ap.J. 209, 536 Google Scholar
Strohmeier, W., 1967, IBVS 184 Google Scholar