34 citations · 156 across the 15 of their papers we have counts for
15 papers
White dwarf structure in gravity: beyond the Chandrasekhar mass limit
Edson Otoniel, Juan M. Z. Pretel, Clésio E. Mota +3
In this work, we investigate the relativistic structure of white dwarfs (WDs) within the framework of modified gravity theory , which introduces a non-mi…
The sound of quintessence: analogue Kiselev acoustic black holes
Luis C. N. Santos, H. S. Vieira, Franciele M. da Silva +1
In this work, we demonstrate that the geometry of a spherically symmetric black hole surrounded by a Kiselev anisotropic fluid can be effectively mimicked by an experimental setup…
Black holes as gravitational mirrors
L. C. N. Santos, F. M. da Silva, C. R. Muniz +1
Retrolensing is a gravitational lensing effect in which light emitted by a background source is deflected by a black hole and redirected toward the observer after undergoing nearly…
Bound and Scattering States in a Spacetime with Dual Topological Defects: Cosmic String and Global Monopole
L. G. Barbosa, L. C. N. Santos, J. V. Zamperlini +1
This paper explores the relativistic quantum motion of scalar bosons in the presence of mixed topological defects: cosmic strings and global monopoles. The Klein-Gordon equation wi…
Strongly Interacting Quark Matter in Massive Quark Stars
Adamu Issifu, Franciele M. da Silva, Luis C. N. Santos +2
This paper investigates the properties of strongly coupled matter at high baryon densities (\(ρ_B\)) in quark stars (QSs). The QS model is based on the density-dependent quark mass…
Constraining the Generalized Tolman-Oppenheimer-Volkoff (GTOV) equation with Bayesian analysis
Franciele M. da Silva, Fábio Köpp, Marcelo D. Alloy +4
In this work, we constrain the values of the parameters of the Generalized Tolman-Oppenheimer-Volkoff (GTOV) equation through Bayesian inference. We use the mass and radius data fr…
Proto-strange quark stars from density-dependent quark mass model
Adamu Issifu, Franciele M. da Silva, Débora P. Menezes
In this paper, we investigate the evolution of strange quark stars (SQS) from birth as proto-strange quark stars to maturity as stable SQSs at a zero temperature. We assume that se…
A Bayesian study of quark models in view of recent astrophysical constraints
Franciele M. da Silva, Adamu Issifu, Luiz L. Lopes +2
In this work, we perform a comparative analysis between the density-dependent quark model and the vector MIT bag model using Bayesian analysis. We use the equations of state genera…
Hybrid Stars Built with Density Dependent Models
A. Issifu, F. M. da Silva, D. P. Menezes
Using a density dependent quark model and a relativistic model within the mean-field approximation for hadrons with density dependent meson-baryon couplings, we construct, for the…
Kiselev black holes in gravity
L. C. N. Santos, F. M. da Silva, C. E. Mota +2
We obtain new exact solutions for the gravitational field equations in the context of gravity, thereby obtaining different classes of black holes surrounded by fluids, tak…
Non-inertial effects on a non-relativistic quantum harmonic oscillator in the presence of a screw dislocation
L. C. N. Santos, F. M. da Silva, C. E. Mota +1
We investigate non-inertial effects induced by a rotating frame on a non-relativistic quantum harmonic oscillator as well as of the topology associated to a screw dislocation, whic…
Rapidly rotating neutron stars in gravity
F. M. da Silva, L. C. N. Santos, C. E. Mota +2
In this work, we study the influence of gravity on rapidly rotating neutron stars. First we discuss the main aspects of this modified theory of gravity where the gravitati…
Rapidly rotating compact stars in Rastall's gravity
F. M. da Silva, L. C. N. Santos, C. C. Barros
In this work we study rapidly rotating stars by considering the Rastall theory of gravity. We obtain and solve the equations by numerical methods for two usual parametrization of p…
Generalized Rastall's gravity and its effects on compact objects
Clésio E. Mota, Luis C. N. Santos, Franciele M. da Silva +3
We present a generalization of Rastall's gravity in which the conservation law of the energy-momentum tensor is altered, and as a result, the trace of the energy-momentum tensor is…
Scalar bosons with Coulomb potentials in a cosmic string background: Scattering and bound states
Francisco A. Cruz Neto, Franciele M. da Silva, Luis C. N. Santos +1
The relativistic quantum motion of scalar bosons under the influence of a full vector (minimal and nonminimal ) and scalar () interactions embedded in the backgro…