125 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National University of San MarcosPE16 papers
- Instituto Tecnológico de AeronáuticaBR11 papers
- Centro Brasileiro de Pesquisas FísicasBR6 papers
- Universidade Estadual Paulista (Unesp)BR6 papers
- Universidade Federal do Rio de JaneiroBR6 papers
- Universidade Federal do MaranhãoBR4 papers
- Valongo ObservatoryBR4 papers
- International Center for Relativistic AstrophysicsIT2 papers
- Sapienza University of RomeIT2 papers
- Universidade Estadual da Região Tocantina do MaranhãoBR2 papers
- Universidade Federal do ABCBR2 papers
- Universidade Federal do CaririBR2 papers
12 papers · 1 filter
Dark energy effects on realistic neutron stars
Juan M. Z. Pretel, Sergio B. Duarte, José D. V. Arbañil +2
By considering realistic equations of state (EoSs) to describe the ordinary matter of the stellar crust, in this study, we explore the effect of a dark energy core, made of Chaplyg…
Charged scalar bosons in a Bonnor-Melvin- universe at conical approximation
Luis B. Castro, Angel E. Obispo, Andrés G. Jirón
The quantum dynamics of charged scalar bosons in a Bonnor-Melvin- universe is considered. In this study, the behavior of charged scalar bosons is explored within the framework o…
Compact stars in scalar-tensor theories with a single-well potential and the corresponding theory
Juan M. Z. Pretel, Sergio E. Jorás, Ribamar R. R. Reis +2
The macroscopic properties of compact stars in modified gravity theories can be significantly different from the general relativistic (GR) predictions. Within the gravitational con…
Charged quark stars in metric gravity
Juan M. Z. Pretel, José D. V. Arbañil, Sergio B. Duarte +2
We provide the modified TOV equations for the hydrostatic equilibrium of charged compact stars within the metric gravitational background. We adopt the MIT bag model EoS for…
Tidal deformability and radial oscillations of anisotropic polytropic spheres
José D. V. Arbañil, Grigoris Panotopoulos
We compute the equilibrium, the fundamental eigenfrequency of oscillations modes, and quadrupolar tidal deformability of anisotropic polytropic spheres. These studies are respectiv…
Neutron stars in gravity with conserved energy-momentum tensor: Hydrostatic equilibrium and asteroseismology
Juan M. Z. Pretel, Sergio E. Jorás, Ribamar R. R. Reis +1
We investigate the equilibrium and radial stability of spherically symmetric relativistic stars, considering a polytropic equation of state (EoS), within the framework of …
Radial oscillations and stability of compact stars in gravity
Juan M. Z. Pretel, Sergio E. Jorás, Ribamar R. R. Reis +1
We examine the static structure configurations and radial stability of compact stars within the context of gravity, with and standing for the Ricci scalar and tra…
Fluid pulsation modes from strange stars in a higher-dimensional space-time
José D. V. Arbañil, César H. Lenzi, Manuel Malheiro
In this work, we make the first step to derive non-radial pulsation equations in extra dimensions and investigate how the - and -mode frequencies of strange quark stars, wi…
Gravastar model in Randall-Sundrum braneworld
José D V Arbañil, Pedro H R S Moraes, Manuel Malheiro
In this work we derive a gravastar model in Randall-Sundrum II braneworld scenario. Gravastars (or gravitationally vacuum stars) were proposed by Mazur and Mottola as systems of gr…
Extra dimensions' influence on the equilibrium and radial stability of strange quark stars
José D. V. Arbañil, Geanderson A. Carvalho, Ronaldo V. Lobato +2
We analyze the influence of extra dimensions on the static equilibrium configurations and stability against radial perturbations. For this purpose, we solve stellar structure equat…
Relativistic polytropic spheres with electric charge: Compact stars, compactness and mass bounds, and quasiblack hole configurations
José D. V. Arbañil, Vilson T. Zanchin
We study the static stellar equilibrium configurations ofuncharged and charged spheres composed by a relativistic polytropic fluid, and compare with those of spheres composed by a…
Stellar equilibrium configurations of white dwarfs in the gravity
G. A. Carvalho, R. V. Lobato, P. H. R. S. Moraes +4
In this work we investigate the equilibrium configurations of white dwarfs in a modified gravity theory, na\-mely, gravity, for which and stand for the Ricci scala…