activity
20162026
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 2.1k across the 29 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

11 papers · 1 filter

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.CO2026

Enhancing Gravitational Lens Study with Deep Learning: A Study on Effects of Dropout Regularization

Juan J. Ancona-Flores, A. Hernández-Almada, V. Motta

Strong gravitational lensing provides valuable insights into the mass distribution of galaxies and the nature of dark matter. However, its modeling is computationally demanding due…

astro-ph.CO2024★ 3 cited

Constraints on Tsallis cosmology using recent low and high redshift measurements

M. L. Mendoza-Martínez, A. Cervantes-Contreras, J. J. Trejo-Alonso +1

Recently Tsallis cosmology has been presented as a novel proposal for alleviating both and tensions. Hence a universe filled with matter and radiation as perfect fluids…

astro-ph.CO2023★ 5 cited

MeV dark energy emission from a de Sitter Universe

Yasmín B. Alcántara-Pérez, Miguel A. García-Aspeitia, H. Martíınez-Huerta +1

The evolution of a de Sitter Universe is the base for both the accelerated Universe and the late stationary Universe. So how do we differentiate between both universes? In this pap…

astro-ph.CO2021★ 59 cited

Barrow Entropy Cosmology: an observational approach with a hint of stability analysis

Genly Leon, Juan Magaña, A. Hernández-Almada +3

In this work, we use an observational approach and dynamical system analysis to study the cosmological model recently proposed by Saridakis (2020), which is based on the modificati…

astro-ph.CO2021★ 20 cited

A hybrid model of viscous and Chaplygin gas to tackle the Universe acceleration

A. Hernández-Almada, Miguel A. García-Aspeitia, M. A. Rodrírgues-Meza +1

Motivated by two seminal models proposed to explain the Universe acceleration, this paper is devoted to study a hybrid model which is constructed through a generalized Chaplygin ga…