2 papers
gr-qc2026
A 3+1 Perturbative Approach to the Cosmic Dynamo Equation
Juan F. Bravo, Leonardo Castañeda, Héctor J. Hortúa
In this work, we analyze the evolution of PMFs within a perturbed Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) spacetime using the formalisms of Numerical Relativity (NR). We apply…
astro-ph.CO2025
Analytical Description of Baryonic Matter Fluctuations Using Jeans Filtering Functions in Second-Order Cosmological Perturbation Theory
Diego Fernando Fonseca, Leonardo Castañeda, Luz Ángela García
Cosmological perturbation theory provides the fundamental framework for describing the evolution of the matter-energy density field in an expanding Universe and serves as the basis…