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How to take into account the relativistic effects in dynamical studies of comets

Published online by Cambridge University Press:  06 April 2010

Julia Venturini  and
Tabaré Gallardo
Julia Venturini
Affiliation:
Departamento de Astronomía, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay email: [email protected]
Tabaré Gallardo
Affiliation:
Departamento de Astronomía, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400 Montevideo, Uruguay email: [email protected]
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Abstract

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Comet-like orbits with low perihelion distances tend to be affected by relativistic effects. In this work we discuss the origin of the relativistic corrections, how they affect the orbital evolution and how to implement these corrections in a numerical integrator. We also propose a model that mimics the principal relativistic effects and, contrary to the original “exact” formula, has low computational cost. Our model is appropriated for numerical simulations but not for precise ephemeris computations.

Keywords

relativitycelestial mechanicsmethods: n-body simulationscomets: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 106 - 109
Copyright
Copyright © International Astronomical Union 2010

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