77 citations · 169 across the 14 of their papers we have counts for
6 papers · 1 filter
A Method for Obtaining Cosmological Models Consistency Relations and Gaussian Processes Testing
J. F. Jesus, A. A. Escobal, R. Valentim +1
In the present work, we apply consistency relation tests to several cosmological models, including the flat and non-flat CDM models, as well as the flat XCDM model. The analysis…
Gaussian Processes Reconstruction of the Dark Energy Potential
J. F. Jesus, R. Valentim, A. A. Escobal +2
Scalar Fields (SF) have emerged as natural candidates for dark energy as quintessential or phantom fields, as they are the main ingredient of inflation theories. Instead of assumin…
Gaussian Process Estimation of Transition Redshift
J. F. Jesus, R. Valentim, A. A. Escobal +1
This paper aims to put constraints on the transition redshift , which determines the onset of cosmic acceleration, in cosmological-model independent frameworks. In order to do…
Kinematic Constraints on Spatial Curvature from Supernovae Ia and Cosmic Chronometers
J. F. Jesus, R. Valentim, P. H. R. S. Moraes +1
An approach to estimate the spatial curvature from data independently of dynamical models is suggested, through kinematic parameterizations of the comoving distance ($D_{C}(z…
Bayesian correction of data uncertainties
J. F. Jesus, T. M. Gregório, F. Andrade-Oliveira +2
We compile 41 data from literature and use them to constrain OCDM and flat CDM parameters. We show that the available suffers from uncertainties overestimation…
Bayesian analysis of CCDM Models
J. F. Jesus, R. Valentim, F. Andrade-Oliveira
Creation of Cold Dark Matter (CCDM), in the context of Einstein Field Equations, leads to negative creation pressure, which can be used to explain the accelerated expansion of the…