144 citations · 1.6k across the 82 of their papers we have counts for
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Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant
L. R. Colaço, J. E. Gonzalez, R. F. L. Holanda
A new method based on large-scale structure observations is proposed to probe a possible time variation of the fine-structure constant (). Our analyses are based on time-delay o…
On a possible cosmological evolution of galaxy cluster scaling relation
R. F. L. Holanda, W. J. C. da Silva
An important result from self-similar models that describe the process of galaxy cluster formation is the simple scaling relation $Y_{\rm SZE}D_{\rm A}^{2}/C_{\rm XSZE}Y_{\rm X}= C…
A low Hubble Constant from galaxy distribution observations
R. F. L. Holanda, G. Pordeus-da-Silva, S. H. Pereira
An accurate determination of the Hubble constant remains a puzzle in observational cosmology. The possibility of a new physics has emerged with a significant tension between the cu…
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…
Probing variation of the fine-structure constant in runaway dilaton models using Strong Gravitational Lensing and Type Ia Supernovae
L. R. Colaço, R. F. L. Holanda, R. Silva
In order to probe a possible time variation of the fine-structure constant (), we propose a new method based on Strong Gravitational Lensing and Type Ia Supernovae observations.…