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.

DOI: https://doi.org/10.1051/0004-6361:20021726

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.

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About

• Item ORO ID
• 4682
• Item Type
• Journal Item
• ISSN
• 1432-0746
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	PPA/G/S/1999/00127	PPARC
  Not Set	AYA2000-2559	Spanish DGI

• Keywords
• close binary stars; stellar oscillations; celestial mechanics
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2003 ESO
• Depositing User
• Users 6041 not found.