2k citations · 12k across the 281 of their papers we have counts for
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The electromagnetic coupling and the dark side of the Universe
M. C. Bento, O. Bertolami, P. Torres
We examine the properties of dark energy and dark matter through the study of the variation of the electromagnetic coupling. For concreteness, we consider the unification model of…
Dark Energy, Dark Matter and Gravity
Orfeu Bertolami
We discuss the motivation for high accuracy relativistic gravitational experiments in the Solar System and complementary cosmological tests. We focus our attention on the issue of…
Observational constraints on modified gravity models and the Poincaré dodecahedral topology
M. C. Bento, O. Bertolami, M. J. Rebouças +1
We study the constraints that spatial topology may place on the parameters of models that account for the accelerated expansion of the universe via infrared modifications to genera…
Chaplygin inspired Inflation
O. Bertolami, V. Duvvuri
We discuss chaotic inflation in the context of a phenomenological modification of gravity inspired by the Chaplygin gas equation of state. We find that all observationalconstraints…
Gamma Ray Bursts as Cosmological Probes
O. Bertolami, P. T. Silva
We discuss the prospects of using Gamma Ray Bursts (GRBs) as high-redshift distance estimators, and consider their use in the study of two dark energy models, the Generalized Chapl…