Astrophysics and Space Science

, Volume 315, Issue 1–4, pp 157–165 | Cite as

Effect of Coriolis force on the equilibrium structures of rotating stars and stars in binary systems

Original Article

Abstract

Kopal (Adv. Astron. Astrophys. 9:1–65, 1972) introduced the concept of Roche equipotentials to incorporate the effects of rotation and tidal distortions on the equilibrium structure and periods of small oscillations of rotating stars and stars in binary systems. However his expression for the Roche equipotential accounts for only the effects of centrifugal and gravitational forces and does not take into account the effect of Coriolis force. In this paper we have suitably modified Kopal’s expression for Roche equipotentials to incorporate into it the effect of Coriolis force as well. The modified expression for the Roche equipotential has then been used to compute the equilibrium structures and shapes of polytropic models of rotating stars and stars in binary systems.

Keywords

Binary stars Rotating stars Roche equipotentials Coriolis force Equilibrium structures 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.School of Mathematics and Computer ApplicationsThapar UniversityPatialaIndia
  2. 2.IIT RoorkeRoorkeIndia
  3. 3.Ambala College of Engineering & Applied ResearchAmbala Cantt.India

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