185 citations · 951 across the 48 of their papers we have counts for
48 papers
Cosmological constraints on unimodular gravity models with diffusion
Susana J. Landau, Micol Benetti, Alejandro Perez +1
A discrete space-time structure lying at about the Planck scale may become manifest in the form of very small violations of the conservation of the matter energy-momentum tensor. I…
Fingerprints of modified gravity on galaxies in voids
Pedro Cataldi, Susana Pedrosa, Nelson Padilla +3
We search for detectable signatures of f(R) gravity and its chameleon screening mechanism in the baryonic and dark matter (DM) properties of simulated void galaxies. The enhancemen…
Cosmology-informed neural networks to solve the background dynamics of the Universe
Augusto T. Chantada, Susana J. Landau, Pavlos Protopapas +2
The field of machine learning has drawn increasing interest from various other fields due to the success of its methods at solving a plethora of different problems. An application…
Constraining a possible time-variation of the speed of light along with the fine-structure constant using strong gravitational lensing and Type Ia supernovae observations
L. R. Colaço, S. J. Landau, J. E. Gonzalez +2
The possible time variation of the fundamental constants of nature has been an active subject of research since the large-number hypothesis was proposed by Dirac. In this paper, we…
Parametrized post-Newtonian formalism in higher-order Teleparallel Gravity
Manuel Gonzalez-Espinoza, Giovanni Otalora, Lucila Kraiselburd +1
We study the parametrized post-Newtonian (PPN) limit of higher-derivative-torsion Modified Teleparallel Gravity. We start from the covariant formulation of modified Teleparallel Gr…
Testing f(R) gravity models with quasar X-ray and UV fluxes
Matías Leizerovich, Lucila Kraiselburd, Susana J. Landau +1
Recently, Active Galactic Nuclei (AGNs) have been proposed as standardizable candles, thanks to an observed non-linear relation between their X-ray and optical-ultraviolet (UV) lum…