13 citations · 33 across the 3 of their papers we have counts for
8 papers
Stellar structure in a Newtonian theory with variable
Júlio C. Fabris, Túlio Ottoni, Júnior D. Toniato +1
A Newtonian-like theory inspired by the Brans-Dicke gravitational Lagrangian has been recently proposed. For static configurations the gravitational coupling acquires an intrinsic…
Post-Newtonian -like parameters and the gravitational slip in scalar-tensor and theories
Júnior D. Toniato, Davi C. Rodrigues
We review the fundamentals and highlight the differences between some commonly used definitions for the PPN gamma parameter () and the gravitational slip (). Here we stress t…
Newtonian-like gravity with variable
Júlio C. Fabris, Tales Gomes, Júnior D. Toniato +1
We propose a Lagrangian formulation for a varying Newtonian-like theory inspired by the Brans-Dicke gravity. Rather than imposing an {\it ad hoc} dependence for the gravitation…
Vector perturbations in bouncing cosmology
Nelson Pinto-Neto, Júlio C. Fabris, Júnior D. Toniato +2
An old question surrounding bouncing models concerns their stability under vector perturbations. Considering perfect fluids or scalar fields, vector perturbations evolve kinematica…
Palatini gravity in the solar system: post-Newtonian equations of motion and complete PPN parameters
Júnior D. Toniato, Davi C. Rodrigues, Aneta Wojnar
We perform a post-Newtonian (PN) solar system analysis for Palatini theories considering finite volume non-spherical planets and with emphasis to functions that are a…
The description of gravitational waves in geometric scalar gravity
Júnior Diniz Toniato
It is investigated the gravitational waves phenomena in the geometric scalar theory of gravity (GSG), a class of theories such that gravity is described by a single scalar field. T…