Implications of non-analytical f(R) gravity at Solar-System scales

Details Implications of non-analytical f(R) gravity at Solar-System scales Implications of non-analytical f(R) gravity at Solar-System scales

2008-07-28

arxiv.org/abs/0807.4428v1

Class.Quant.Grav.26:045014,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, no figures

Scientific paper

10.1088/0264-9381/26/4/045014

We motivate and analyze the weak-field limit of a non-analytical Lagrangian for the gravitational field. After investigating the parameter space of the model, we impose constraints on the parameters characterizing this class of theories imposed by Solar-System data, i.e. we establish the validity range where this solution applies and refine the constraints by the comparison with planetary orbits. As a result, we claim that this class of models is viable within different astrophysical scales.

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