169 citations · 288 across the 6 of their papers we have counts for
6 papers
Sub-GeV dark matter in neutron stars: halo morphologies and their suppression by vacuum-like pressure
Loreany F. Araújo, Germán Lugones, José Ademir S. Lima
We investigate neutron stars that contain a unified dark sector composed of cold, degenerate fermionic dark matter and a vacuum-like dark-energy component. Within a general-relativ…
Could the cosmic acceleration be transient? A cosmographic evaluation
Antonio C. C. Guimarães, José Ademir S. Lima
A possible slowing down of the cosmic expansion is investigated through a cosmographic approach. By expanding the luminosity distance to fourth order and fitting the SN Ia data fro…
Reply to ``Comment on Conservative Force Fields in Nonextensive Kinetic Theory"
J. A. S. Lima, J. R. Bezerra, R. Silva
It is shown that the comment by Costa and Meneses [1] did not point any technical or conceptual flaw in our paper titled ``Conservative Force Fields in Nonextensive Kinetic Theory"…
Temperature Evolution Law of Imperfect Relativistic Fluids
R. Silva, J. A. S. Lima, M. O. Calvão
The first-order general relativistic theory of a generic dissipative (heat-conducting, viscous, particle-creating) fluid is rediscussed from a unified covariant frame-independent p…
Graviton Production in Elliptical and Hyperbolic Universes
M. R. de Garcia Maia, J. A. S. Lima
The problem of cosmological graviton creation for homogeneous and isotropic universes with elliptical ($\vae =+1$) and hyperbolical ($\vae =-1$) geometries is addressed. The gravit…
Thermodynamics of Decaying Vacuum Cosmologies
J. A. S. Lima
The thermodynamic behavior of vacuum decaying cosmologies is investigated within a manifestly covariant formulation. Such a process corresponds to a continuous irreversible energy…