161 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade Federal do Espírito SantoBR19 papers
- Centro Brasileiro de Pesquisas FísicasBR10 papers
- Universidade do Estado do Rio de JaneiroBR4 papers
- Universidade Estadual de Campinas (UNICAMP)BR3 papers
- Aix-Marseille UniversitéFR2 papers
- Centre de Physique ThéoriqueFR2 papers
- Institute of Mathematics and PhysicsBJ2 papers
- Instituto Federal FluminenseBR2 papers
- Massachusetts Institute of TechnologyUS2 papers
- Muncipal de Bom Jesus do ItabapoanaBR2 papers
- National Research Nuclear University MEPhIRU2 papers
- Universidade Federal de Ouro PretoBR2 papers
9 papers · 1 filter
Nonconservative traceless type gravity
Mahamadou Daouda, J. C. Fabris, A. M. Oliveira +2
Extensions of the gravity theory in order to obtain traceless field equations have been widely considered in the literature. The leading example of such class of theories is the un…
Topological Gravity on Shift Superspace Formulation
José A. Lourenço, José A. Helayël Neto, Wesley Spalenza
In this contribution, we re-assess the subject of topological gravity by following the Shift Supersymmetry formalism. The gauge-fixing of the theory goes under the Batallin-Vilkovi…
Non-trivial static, spherically symmetric vacuum solution in a non-conservative theory of gravity
A. M. Oliveira, H. E. S. Velten, J. C. Fabris
We analyse the vacuum static spherically symmetric space-time for a specific class of non-conservative theories of gravity based on the Rastall's theory. We obtain a new vacuum sol…
Neutron Stars in Rastall Gravity
A. M. Oliveira, H. E. S. Velten, J. C. Fabris +1
We calculate static and spherically symmetric solutions for the Rastall modification of gravity to describe Neutron Stars (NS). The key feature of the Rastall gravity is the non-co…
General Bianchi IX dynamics in bouncing braneworld cosmology: homoclinic chaos and the BKL conjecture
Rodrigo Maier, Ivano Damião Soares, Eduardo Valentino Tonini
We examine the dynamics of a Bianchi IX model on a 4-dim brane embedded in a 5-dim conformally flat empty bulk with a timelike extra dimension. Einstein's equations on the brane re…
Newtonian View of General Relativistic Stars
A. M. Oliveira, H. E. S. Velten, J. C. Fabris +1
Although general relativistic cosmological solutions, even in the presence of pressure, can be mimicked by using neo-Newtonian hydrodynamics, it is not clear whether there exists t…
Bianchi type-I, type-III and Kantowski-Sachs solutions in f(T) gravity
M. E. Rodrigues, A. V. Kpadonou, F. Rahaman +2
In the context of modified tele-parallel theory of gravity, we undertake cosmological anisotropic models and search for their solutions. Within a suitable choice of non-diagonal te…
Gravitational wave recoils in non-axisymmetric Robinson-Trautman spacetimes
R. F. Aranha, I. Damião Soares, E. V. Tonini
We examine the gravitational wave recoil waves and the associated net kick velocities in non-axisymmetric Robinson-Trautman spacetimes. We use characteristic initial data for the d…
Mass-Energy and Momentum Extraction by Gravitational Wave Emission in the Merger of Two Colliding Black Holes: The Non-Head-On Case
R. F. Aranha, I. Damião Soares, E. V. Tonini
We examine numerically the post-merger regime of two Schwarzschild black holes in non head-on collision. Our treatment is made in the realm of non-axisymmetric Robinson-Trautman sp…