Dynamical Evolution of the RS CVn-type Binaries

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Turkish Journal of Physics
Volume:23 Issue:2
Dynamical Evolution of the RS CVn-type Binaries

Dynamical Evolution of the RS CVn-type Binaries

Authors : Osman DEMİRCAN

Pages : 425-432

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The orbital angular momentum insert ignore into journalissuearticles values(orbital AM); of a sample of forty RS CVn-type binaries with the orbital periods P \leq 10 days were estimated and the orbital AM distribution with respect to P was critically interpreted as the orbital AM evolution of these systems caused by the magnetic breaking process with the existence of spin-orbit coupling. The empirical relations insert ignore into journalissuearticles values(between the orbital AM loss, mass loss and period variation); derived from the diagram of the orbital AM distribution were used in deriving a semi-empirical formula for the dynamical evolution of the RS CVn-type binaries. The magnetic breaking induced dynamical evolution of the RS CVn-type binaries maybe at different rates but is always towards the shorter periods in the existence of spin-orbit coupling and before the Roche lobe filling of a component star.
Keywords : Turk J Phys, 23, 1999, 425 432 Turk J Phys, vol 23, iss 2

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