70 citations · 194 across the 28 of their papers we have counts for
29 papers
Early dark energy induced by non-linear electrodynamics
H. B. Benaoum, Luz Ángela García, Leonardo Castañeda
In this work, we introduce a parametrization of early dark energy that mimics radiation at early times and governs the present acceleration of the Universe. We show that such param…
relensing: Reconstructing the mass profile of galaxy clusters from gravitational lensing
Daniel A. Torres-Ballesteros, Leonardo Castañeda
In this work we present relensing, a package written in python whose goal is to model galaxy clusters from gravitational lensing. With relensing we extend the amount of software av…
Mass reconstruction in disc like galaxies using strong lensing and rotation curves: The Gallenspy package
Itamar López, Leonardo Castañeda
Two methods for mass profiles reconstruction in disc-like galaxies are presented in this work, the first is done with the fit of the rotation curve based on the data of circular ve…
A novel early Dark Energy model
Luz Ángela García, Leonardo Castañeda, Juan Manuel Tejeiro
We present a theoretical study of an early dark energy (EDE) model. The equation of state evolves during the thermal history in a framework of a Friedmann-Lemaitre-Robertson…
On perturbative constraints for vacuum f(R) gravity
Daniel Molano, Fabián Darío Villalba, Leonardo Castañeda +1
Perturbative techniques are important for modified theories of gravity since they allow to calculate deviations from General Relativity without recurring to exact solutions, which…
Equivalence between Scalar-Tensor theories and -gravity: From the action to Cosmological Perturbations
Joel Velasquez, Leonardo Castaneda
In this paper we calculate the field equations for Scalar-Tensor from a variational principle, in which we have taken into account the Gibbons-York-Hawking type boundary term. We d…