3 papers
astro-ph.CO2026
Variational autoencoder for generating realistic -body simulations for dark matter halos
Jazhiel Chacón-Lavanderos, Isidro Gómez-Vargas, Ricardo Menchaca-Mendez +1
In this paper, we present a deep-learning approach to generate synthetic cosmological images by training a convolutional variational autoencoder on two-dimensional dark matter dens…
astro-ph.CO2026
Late-time acceleration without a vacuum term in gravity: scaling deSitter dynamics and parameter constraints
Luciano Navarro-Coydán, J. Alberto Vázquez, Israel Quiros +1
We investigate late-time cosmic acceleration in gravity driven by nonlinear matter contributions, focusing on the class with the e…
astro-ph.CO2025
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…