3 papers
gr-qc2025
Kinematic reconstruction of torsion as dark energy in Friedmann cosmology
A. M. Vicente, J. F. Jesus, S. H. Pereira
In this paper we study the effects of torsion of space-time in the expansion of the Universe as a candidate to dark energy. The analysis is done by reconstructing the torsion funct…
astro-ph.CO2025
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…
astro-ph.CO2025
Bayesian correction of cosmic chronometers data with systematic errors
NÃcolas Romeiro Kvint, José Fernando de Jesus, Saulo Henrique Pereira
We show that the 32 data from cosmic chronometers have overestimated uncertainties and make use of a Bayesian method to correct and reduce it. We then use the corrected data…