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Measurement of the Tidal Dissipation in Multiple Stars

Published online by Cambridge University Press:  12 July 2007

Andrei Tokovinin
Andrei Tokovinin*
Affiliation:
Cerro Tololo Inter-American Observatory, Casilla 603 La Serena, Chile e-mail: atokovinin@ctio.noao.edu
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Abstract

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Considerable effort has been spent to determine the period of tidal circularization in close binaries as a function of age, in order to constrain the tidal dissipation theory. A new, direct method of measuring the tidal dissipation by precise timings of periastron passages in eccentric binaries undergoing circularization is proposed. Such binaries with components just leaving the Main Sequence can be found as inner systems in multiple stars. Three examples are given.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 306 - 308
Copyright
Copyright © International Astronomical Union 2007

References

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