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arXiv · 1904.11209

Gravitational Plane Waves in a Non-Riemannian Description of Brans-Dicke Gravity

Tekin Dereli·Yorgo Senikoglu
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Abstract

The variational field equations of Brans-Dicke scalar-tensor theory of gravitation are given in a non-Riemannian setting in the language of exterior differential forms over 4-dimensional spacetime. The class of pp-wave metrics together with the Brans-Dicke scalar field are used to derive the geodesic and autoparallel equations of motion for non-spinning test masses in Brinkmann and Rosen coordinates. The effects of the gradient of the scalar field on the auto-parallel equations of motion and Jacobi deviation equation are discussed.

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Tekin Dereli, Yorgo Senikoglu. 2019-10-13. Gravitational Plane Waves in a Non-Riemannian Description of Brans-Dicke Gravity. https://doi.org/10.1088/1402-4896%2Fab6eb7

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