33 citations · 150 across the 19 of their papers we have counts for
20 papers
Envelopes for orbits around axially symmetric sources with spheroidal shape
Javier Ramos-Caro, Ronaldo S. S. Vieira
We introduce a method to obtain the envelopes of eccentric orbits in axially symmetric potentials, , endowed with -symmetry of reflection. By making the transformation $…
Post-Newtonian Hamiltonian dynamics: applications to stationary spacetimes and statistical mechanics
Ronaldo S. S. Vieira, Javier Ramos-Caro, Alberto Saa
Although the post-Newtonian Lagrangian formalism is widely used in relativistic dynamical and statistical studies of test bodies moving around arbitrary mass distributions, the cor…
PPN rotation curves in static distributions with spherical symmetry
Henrique Matheus Gauy, Javier Ramos-Caro
From a Parametrized Post-Newtonian (PPN) [46-51] perspective, we address the question of whether or not the new degrees of freedom, represented by the PPN potentials, can lead to s…
Envelopes and vertical amplitudes of disk-crossing orbits
Ronaldo S. S. Vieira, Javier Ramos-Caro
We recently found that regular orbits in axially symmetric galactic disks have their envelopes accurately described by the relation , if their am…
Distribution functions for a family of general-relativistic Hypervirial models in collisionless regime
Henrique Matheus Gauy, Javier Ramos-Caro
By considering the Einstein-Vlasov system for static spherically symmetric distributions of matter, we show that configurations with constant anisotropy parameter have, necessa…
Vertical stability of circular orbits in relativistic razor-thin disks
Ronaldo S. S. Vieira, Javier Ramos-Caro, Alberto Saa
During the last few decades, there has been a growing interest in exact solutions of Einstein equations describing razor-thin disks. Despite the progress in the area, the analytica…