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Tidal evolution of close binary stars. I - Revisiting the theory of the equilibrium tideThe theory of the equilibrium tide in stars that possess a convective envelope is reexamined critically, taking recent developments into account and treating thermal convection in the most consistent way within the mixing-length approach. The weak points are identified and discussed, in particular, the reduction of the turbulent viscosity when the tidal period becomes shorter than the convective turnover time. An improved version is derived for the secular equations governing the dynamical evolution of close binaries of such type.
Document ID
19890066220
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zahn, J.-P.
(Observatoire Midi-Pyrenees, Toulouse, France; Joint Institute for Laboratory Astrophysics, Boulder CO, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Astronomy and Astrophysics
Volume: 220
Issue: 2-Jan
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
89A53591
Funding Number(s)
CONTRACT_GRANT: NAGW-91
CONTRACT_GRANT: NSG-7511
Distribution Limits
Public
Copyright
Other

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