3 papers
astro-ph.GA2026
The new era of Lyman alpha emitters (LAEs): Typical star formation histories of LAEs in the ILLUSTRIS simulation
I. Laferte-Urrutia, P. Troncoso-Iribarren, Alex Vera-Casanova +8
This work seeks to understand the nature of Lyman-alpha emitting galaxies in a cosmological context by analyzing their star-formation histories in the IllustrisTNG100 simulation, a…
astro-ph.CO2026
Reconstructing the cosmic expansion with a generalized q(z) parameterization: A decelerating Universe from late-time constraints
Tomás Verdugo, Alberto Hernández-Almada, Miguel A. García-Aspeitia +2
We present a generalized phenomenological parameterization of the deceleration parameter that incorporates an effective radiative component (ERC) in addition to a localized…
astro-ph.CO2024
On a model of variable curvature that mimics the observed Universe acceleration
A. Esteban-Gutiérrez, Miguel A. García-Aspeitia, A. Hernández-Almada +2
We present a new model based on General Relativity in where a subtle change of curvature at late times is able to produce the observed Universe acceleration and an oscillating beha…