NUMERICAL SIMULATION OF THE ENCOUNTERS OF THE SOLAR SYSTEM WITH MASSIVE STARS

Author(s):  A.M. Zabolotskiy, candidate of Sciences, associate Professor, Belgorod State Agricultural University named after V. Gorin, Belgorod , Russia, zabolotskiy.bel@rambler.ru

Issue:  Volume 51, № 1

Rubric:  Physics. Mathematical modeling

Annotation:  The problem of modeling the approach of the Solar system to a massive star on the basis of numerical integration of the equations of motion of objects of the Oort cloud is considered. On the basis of the obtained results, it is found that the collision with a star increases the dispersion of orbit eccentricities, which entails, on the one hand, the loss of a significant part of the objects of the Oort cloud due to their transition to hyperbolic orbits, and on the other-to the appearance of orbits with small eccentricity and large semi – axes of the order of 30,000 a. e. A collision with a massive star results in anisotropy of the directions of the large semi-axes of the orbits with the predominant orientation of the perihelion orbits to the point of maximum convergence of the star with the Solar system.

Keywords:  Oort cloud, Runge-Kutta method, long-period comets

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