Application of a Fictitious Attracting Center to the Study of the Motion of Minor Bodies Approaching Major Planets

Details Application of a Fictitious Attracting Center to the Study of the Motion of Minor Bodies Approaching Major Planets Application of a Fictitious Attracting Center to the Study of the Motion of Minor Bodies Approaching Major Planets

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sosyr..39..239s&link_type=abstract

Solar System Research, Volume 39, Issue 3, pp.239-246

Physics

Scientific paper

The motion of minor Solar System bodies having close encounters with major planets is described using the model of motion within the framework of the perturbed restricted three-body problem. The actual motion of a minor body is represented as a combination of two motions, namely, the motion of a fictitious attracting center with a variable mass and the motion with respect to the fictitious center. The position and mass of the fictitious center are chosen so that, when the minor body collides with any of the primaries, the fictitious center carries into the center of inertia of the colliding body and the mass of the fictitious center becomes identical to the mass of this body. The regularizing KS-transformation and Sundman’s time transformation were applied to coordinates and velocities. As a result, a system of differential equations of motion that are quasilinear within the nearest vicinity of each of the primary attracting bodies was obtained. These equations are characterized by a numerical behavior during the encounters of the minor body with the primaries that is essentially better than that of the initial equations of motion. The motion of comets Brooks 2 and Gehrels 3, which have fairly close encounters with Jupiter, is simulated.

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