Regular Article - Theoretical Physics
Constraints on scalar–tensor theory of gravity by solar system tests
Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Casilla 298-V, Avenida Ejército Libertador 441, Santiago, Chile
2 Department of Physics, National Technical University of Athens, Zografou Campus, 157 73, Athens, Greece
3 Departamento de Física, Facultad de Ciencias, Universidad de La Serena, Avenida Cisternas 1200, La Serena, Chile
Accepted: 10 October 2020
Published online: 22 October 2020
We study the motion of particles in the background of a scalar–tensor theory of gravity in which the scalar field is kinetically coupled to the Einstein tensor. We constrain the value of the derivative parameter z through solar system tests. By considering the perihelion precession we obtain the constraint m, the gravitational redshift m, the deflection of light m, and the gravitational time delay m; thereby, our results show that it is possible to constrain the value of the z parameter in agreement with the observational tests that have been considered.
© The Author(s) 2020
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