On the stability of triangular libration points of the photogravitational restricted circular three-body problem

Computer Science

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Celestial Mechanics, Computer Techniques, Librational Motion, Motion Stability, Solar System, Three Body Problem, Algorithms, Cartesian Coordinates, Equations Of Motion, Hamiltonian Functions, Liapunov Functions, Transformations

Scientific paper

This paper considers the restricted circular three-body problem with respect to the radiation repulsion force acting upon a particle on the part of one of the main bodies (the Sun). The characteristic of the family of stationary particular solutions of the problem (libration points) representing the relative equilibrium positions in a rotating Cartesian system is given. On the basis of the KAM theory with the help of a computer a nonlinear analysis of the triangular libration points stability for the planar case is carried out. These libration points are proved to be strictly stable by Liapunov practically in the whole area of fulfilling the necessary stability conditions. Instability is discovered at the resonant curve of the third order and at the greater part of the resonant curve of the fourth order. The plotted results of the investigation allowed us to draw a conclusion about the Liapunov stability of the triangular libration points in a problem with respect to the radiation pressure for all the planets of the solar system.

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