324 citations · 415 across the 4 of their papers we have counts for
4 papers
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…
Thermal Analysis of the Pioneer Anomaly: A method to estimate radiative momentum transfer
Orfeu Bertolami, Frederico Francisco, Paulo J. S. Gil +1
We present a methodology based on point-like Lambertian sources that enables one to perform a reliable and comprehensive estimate of the overall thermally induced acceleration of t…
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…
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…