216 citations · 1.8k across the 27 of their papers we have counts for
5 papers · 1 filter
f(R) actions, cosmic acceleration and local tests of gravity
I. Navarro, K. Van Acoleyen
We study spherically symmetric solutions in f(R) theories and its compatibility with local tests of gravity. We start by clarifying the range of validity of the weak field expansio…
Long distance modifications of gravity in four dimensions
I. Navarro, K. Van Acoleyen
We discuss some general characteristics of modifications of the 4D Einstein-Hilbert action that become important for low space-time curvatures. In particular we focus on the chamel…
Modified gravity, Dark Energy and MOND
Ignacio Navarro, Karel Van Acoleyen
We propose a class of actions for the spacetime metric that introduce corrections to the Einstein-Hilbert Lagrangian depending on the logarithm of some curvature scalars. We show t…
Consistent long distance modification of gravity from inverse powers of the curvature
Ignacio Navarro, Karel Van Acoleyen
In this paper we study long distance modifications of gravity obtained by considering actions that are singular in the limit of vanishing curvature. In particular, we showed in a p…
On the Newtonian limit of Generalized Modified Gravity Models
Ignacio Navarro, Karel Van Acoleyen
We consider the Newtonian limit of modified theories of gravity that include inverse powers of the curvature in the action in order to explain the cosmic acceleration. It has been…