77 citations · 131 across the 9 of their papers we have counts for
9 papers · 1 filter
Interacting Dark Sector field theory with phantom crossing
E. Abdalla, O. P. F. Piedra, A. A. Escobal +4
Recent results from the Dark Energy Spectroscopic Instrument (DESI) provide evidence for a dynamical dark-energy component, whose equation of state appears to have recently crossed…
Linear Growth of Matter Perturbations Probed by Redshift-Space Distortions in Interacting CDM Cosmologies
A. A. Escobal, H. A. P. Macedo, J. F. Jesus +2
In the context of a spatially flat CDM cosmology, we investigate interacting dark energy (IDE) scenarios characterized by phenomenological interaction terms proportional to t…
A microphysically inspired approach to dark matter-dark energy interactions: first bounds on dark-sector scattering cross sections
A. A. Escobal, F. B. Abdalla, J. F. Jesus +4
The observational tension regarding the value of the Hubble constant () has motivated the exploration of alternative cosmological scenarios, including Interacting Dark Energy…
Can decaying vacuum solve the H_0 Tension?
L. S. Brito, J. F. Jesus, A. A. Escobal +1
In the present work we analyze two different models of interaction between dark energy and dark matter, also known as vacuum decay models or CDM models. In both models, when…
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…
Can dark matter-dark energy interaction alleviate the Cosmic Coincidence Problem?
J. F. Jesus, A. A. Escobal, D. Benndorf +1
In this paper we study a model of interacting dark energy - dark matter where the ratio between these components is not constant, changing from early to late times in such a way th…
Cosmological Constraints on Scalar Field Dark Matter
A. A. Escobal, J. F. Jesus, S. H. Pereira
This paper aims to put constraints on the parameters of the Scalar Field Dark Matter (SFDM) model, when dark matter is described by a free real scalar field filling the whole Unive…
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…