119 citations · 741 across the 31 of their papers we have counts for
31 papers
Cosmological Constraints on (t)CDM Models
H. A. P. Macedo, L. S. Brito, J. F. Jesus +1
Problems with the concordance cosmology CDM as the cosmological constant problem, coincidence problems and Hubble tension has led to many proposed alternatives, as the CDM…
Can the Universe decelerate in the future?
A. A. Escobal, J. F. Jesus, S. H. Pereira +1
The possibility of an expanding decelerating Universe in the distant future is investigated in the context of a quintessence scalar field cosmology. Such a conceivable evolution is…
From Hubble to Snap Parameters: A Gaussian Process Reconstruction
J. F. Jesus, D. Benndorf, S. H. Pereira +1
By using recent and SNe Ia data, we reconstruct the evolution of kinematic parameters , , jerk and snap, using a model-independent, non-parametric method, namely…
Testing a varying- model for dark energy within Co-varying Physical Couplings framework
R. R. Cuzinatto, R. P. Gupta, R. F. L. Holanda +2
The Co-varying Physical Couplings (CPC) framework is a modified gravity set up assuming Einstein Field Equations wherein the quantities are promoted to space-time funct…
Fermionic wave functions and Grassmann fields as possible sources of dark energy
L. C. T. Brito, S. H. Pereira, L. N. Barboza +2
We study a cosmological model with a fermionic field which can be interpreted as a source of dark energy in the universe. Two different approaches were considered, the first one wi…
Dark matter from torsion in Friedmann cosmology
S. H. Pereira, A. M. Vicente, J. F. Jesus +1
A cosmological model in an Einstein-Cartan framework endowed with torsion is studied. For a torsion function assumed to be proportional to Hubble expansion function, namely …