On the Approximation of the Attraction Field of a Rigid Body by the Attraction Field of Four Material Points of the Same Mass.

Autor: Burov, A. A., Nikonova, E. A., Nikonov, V. I.
Zdroj: Vestnik St. Petersburg University: Mathematics; Jun2024, Vol. 57 Issue 2, p263-269, 7p
Abstrakt: 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 a test 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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