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Magnetic and tidal interactions in spin evolution of exoplanets

Published online by Cambridge University Press:  01 November 2008

Irina N. Kitiashvili
Irina N. Kitiashvili*
Affiliation:
Center for Turbulence Research, Stanford University, Stanford, CA 94305, USA email: irinasun@stanford.edu
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Abstract

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The axis-rotational evolution of exoplanets on close orbits strongly depends on their magnetic and tidal interactions with the parent stars. Impulsive perturbations from a star created by periodical activity may accumulate with time and lead to significant long-term perturbations of the planet spin evolution. I consider the spin evolution for different conditions of gravitational, magnetic and tidal perturbations, orbit eccentricity and different angles between the planetary orbit plane and the reference frame of a parent star. In this report I present a summary of analytical and numerical calculations of the spin evolution, and discuss the problem of the star-planet magnetic interaction.

Keywords

Exoplanets – stars: planetary systems – stars: rotation – magnetic field
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 303 - 304
Copyright
Copyright © International Astronomical Union 2009

References

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