636 citations · 1.9k across the 60 of their papers we have counts for
60 papers
The Role of Gravitational Energy Flux in Cosmic Acceleration
S. C. Ulhoa, F. L. Carneiro, J. W. Maluf
The article deals with the role of gravitational radiation energy in the large-scale dynamics of the universe. Motivated by the observed accelerated expansion, we investigate wheth…
Blueshift of light rays induced by gravitational wave memory effect
F. L. Carneiro, S. C. Ulhoa, J. W. Maluf
The article deals with photon propagation in pp-wave spacetimes in the strong gravitational-wave regime and its consequences for redshift measurements. We show that null geodesics…
On the Thermodynamics of Gravitational Radiation
S. C. Ulhoa, F. L. Carneiro, J. W. Maluf
This article deals with the thermodynamics of gravitational radiation arising from the Bondi-Sachs space-time. The equation of state found allows us to conclude that the dependence…
Tetrad Fields, Reference Frames, and the Gravitational Energy-Momentum in the Teleparallel Equivalent of General Relativity
J. W. Maluf, F. L. Carneiro, S. C. Ulhoa +1
We review the concept and definitions of the energy-momentum and angular momentum of the gravitational field in the teleparallel equivalent of general relativity (TEGR). The import…
Kerr-Schild Tetrads and the Nijenhuis Tensor
J. W. Maluf, F. L. Carneiro, S. C. Ulhoa +1
We write the Kerr-Schild tetrads in terms of the flat space-time tetrads and of a (1,1) tensor . This tensor can be considered as a projection operator, since it transforms…
On the Black Hole Acceleration in the C-metric Space-time
F. L. Carneiro, S. C. Ulhoa, J. W. Maluf
We consider the C-metric as a gravitational field configuration that describes an accelerating black hole in the presence of a semi-infinite cosmic string, along the accelerating d…