A vector field approach to calculating gravitational forces

Research output: Contribution to journalArticle

Abstract

Calculation of gravitational forces is essential for many fundamental measurements, such as determining the gravitational constant or investigating violations of the inverse square law. These calculations, even with modern computational power, are slow and tedious. Improved calculation efficiency allows an experimentalist to easily check the effect of possible systematic biases and to ease the process of instrument design. Many gravitational measurements are expanded in terms of multipole moments for efficient calculations, however for many experimental geometries these do not converge, leaving awkward sextuple integrals. In this work we introduce a modified approach to the calculation which reduces the force between a point mass and any arbitrary object to a sum of single integrals. The force between any two objects can then be calculated as a quadruple rather than a sextuple integral.
LanguageEnglish
Article number073032
Number of pages1
JournalNew Journal of Physics
Volume19
Issue number7
Early online date29 Jun 2017
DOIs
StatusPublished - 27 Jul 2017

Cite this

A vector field approach to calculating gravitational forces. / Stirling, Julian.

In: New Journal of Physics, Vol. 19, No. 7, 073032, 27.07.2017.

Research output: Contribution to journalArticle

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