Solar system constraints on R${}^n$ gravity

Abstract

Recently, gravitational microlensing has been investigated in the framework of the weak field limit of fourth order gravity theory. However, solar system data (i.e. planetary periods and light bending) can be used to put strong constraints on the parameters of this class of gravity theories. We find that these parameters must be very close to those corresponding to the Newtonian limit of the theory.

in press on Phys. Rev. D

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• Matter density perturbations and effective gravitational constant in modified gravity models of dark energy
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• The (pseudo)issue of the conformal frame revisited
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• Constraints on scalar-tensor models of dark energy from observational and local gravity tests
• Density perturbations in f(R) gravity theories in metric and Palatini formalisms
• The Cauchy problem of f(R) gravity
• $f(R)$ gravity constrained by PPN parameters and stochastic background of gravitational waves
• Consistency of $f(R)=\sqrt{R^2-R_0^2}$ Gravity with the Cosmological Observations in Palatini Formalism
• Implications of non-analytical f(R) gravity at Solar-System scales
• Solar System tests of some models of modified gravity proposed to explain galactic rotation curves without dark matter
• Observational tests of a two parameter power-law class modified gravity in Palatini formalism