16 citations · 18 across the 2 of their papers we have counts for
5 papers
Bayesian Comparison of the Cosmic Duality Scenarios
W. J. C. da Silva, R. F. L. Holanda, R. Silva
The cosmic distance duality relation (CDDR), , with and , being the luminosity and angular diameter distances, respectivel…
Variation in the fine-structure constant, distance-duality relation and the next generation of high-resolution spectrograph
Rodrigo S. Gonçalves, Susana Landau, Jailson S. Alcaniz +1
The possibility of variation of the fundamental constants of nature has been a long-standing question, with important consequences for fundamental physics and cosmology. In particu…
Acceleration in Friedmann cosmology with torsion
S. H. Pereira, R. de C. Lima, J. F. Jesus +1
A Friedmann like cosmological model in Einstein-Cartan framework is studied when the torsion function is assumed to be proportional to a single function coming just from the…
An estimate of the dark matter density from galaxy clusters and supernovae data
R. F. L. Holanda, R. S. Gonçalves, J. E. Gonzales +1
In this paper, we discuss a model-independent way to obtain the present dark matter density parameter () by combining gas mass fraction measurements in galaxy cluster…
Are Galaxy Clusters Suggesting an Accelerating Universe Independent of SNe Ia and Gravity Metric Theory?
J. A. S. Lima, R. F. L. Holanda, J. V. Cunha
A kinematic method to access cosmic acceleration based exclusively on the Sunyaev-Zel'dovich effect (SZE) and X-ray surface brightness data from galaxy clusters is proposed. By usi…