3 papers
astro-ph.CO2026
On the Reliability of Quasars as Cosmological Distance Indicators
Ariadna Montiel, Sofia Samario-Nava, Juan Carlos Hidalgo +1
We assess the viability of quasars as cosmological distance indicators based on the non-linear -- relation. We calibrate this relation in a model-independent way b…
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.…
gr-qc2024
Comparative of light propagation in Born-Infeld, Euler-Heisenberg and ModMax nonlinear electrodynamics
Elda Guzman-Herrera, Ariadna Montiel, Nora Breton
We compare light propagation through an intense electromagnetic background as described by three different nonlinear electrodynamics: Born-Infeld (BI), Euler-Heisenberg (EH), and M…