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The effect of stellar compressibility and non-resonant dynamic tides on the apsidal-motion rate in close binaries

Willems, B. and Claret, A. (2003). The effect of stellar compressibility and non-resonant dynamic tides on the apsidal-motion rate in close binaries. Astronomy & Astrophysics, 398(3) pp. 1111–1116.

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DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1051/0004-6361:20021726
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Abstract

The paper is devoted to the analysis of the systematic deviations between the classical formula for the rate of secular apsidal motion in close binaries and the formula established within the framework of the theory of dynamic tides. The basic behaviour is found to be governed by the dependency of the forcing frequencies on the orbital period and the rotational angular velocity, irrespective of the stellar model. For binaries with short orbital periods a good agreement between the classical apsidal-motion formula and the formula established within the framework of the theory of dynamic tides is only possible for certain values of the rotational angular velocity.

Item Type: Journal Article
Copyright Holders: 2003 ESO
ISSN: 1432-0746
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetPPA/G/S/1999/00127PPARC
Not SetAYA2000-2559Spanish DGI
Keywords: close binary stars; stellar oscillations; celestial mechanics
Academic Unit/Department: Science > Physical Sciences
Item ID: 4682
Depositing User: Users 6041 not found.
Date Deposited: 11 Jul 2006
Last Modified: 26 Sep 2014 06:59
URI: http://oro.open.ac.uk/id/eprint/4682
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