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
Semi-Analytical Jeans Filtering Functions for Baryonic Density and Velocity Fields in Second-Order Cosmological Perturbation Theory
Diego Fernando Fonseca, Leonardo Castañeda, Luz Ángela García
Cosmological perturbation theory provides the framework for describing the evolution of matter density fluctuations and the formation of large-scale structure in the CDM paradig…