324 citations · 417 across the 5 of their papers we have counts for
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The Galileo satellite constellation and modifications to the inverse-square law for Gravitation
J. Páramos, O. Bertolami
We consider the impact of a power-law correction to the Newtonian potential, inspired by ungravity or extensions of the Standard Model, and draw conclusions on the possibili…
Non-minimal curvature-matter couplings in modified gravity
Orfeu Bertolami, Tiberiu Harko, Francisco S. N. Lobo +1
Recently, in the context of f(R) modified theories of gravity, it was shown that a curvature-matter coupling induces a non-vanishing covariant derivative of the energy-momentum, im…
Nonminimal coupling of perfect fluids to curvature
Orfeu Bertolami, Francisco S. N. Lobo, Jorge Páramos
In this work, we consider different forms of relativistic perfect fluid Lagrangian densities, that yield the same gravitational field equations in General Relativity. A particularl…
On the non-minimal gravitational coupling to matter
O. Bertolami, J. Páramos
The connection between theories of gravity and scalar-tensor models with a "physical" metric coupled to the scalar field is well known. In this work, we pursue the equivalen…
Pioneer's Final Riddle
O. Bertolami, J. Páramos
Launched more than thirty years ago and now drifting in space with no further contact, the Pioneer 10 and 11 spacecraft are currently at the center of a small but developing concer…