On the Approximation of the Attraction Field of a Rigid Body by the Attraction Field of Four Material Points of the Same Massстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2024 г.
Аннотация:In this paper, we study the problem of approximating the gravitational potential of a rigid body by the potential of a system of four identical point masses. Considering the potential as an expansion in terms of a parameter characterizing the ratio of the average size of a body to the distance to atest point in space, we propose an approach to constructing an approximate expression up to terms of the third order of smallness. This approach is used to build a model of the gravitational field of the nucleus of comet 67P/Churyumov–Gerasimenko.