#cosmological tensions
topiccosmological tensions
3 papers · 1 filter
astro-ph.CO2026
Unified dark sector approaches to cosmological tensions
Sergio Sevillano Muñoz, Mark Trodden
The paper analytically studies simple models where a single scalar field varies the mass of dark matter, showing how such models can simultaneously address early- and late-time cos…
astro-ph.CO2026
Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-CDM Interpretations, and Tensions
Tian-Nuo Li, Guo-Hong Du, Hao Wang +3
The paper reviews recent DESI BAO measurements that hint at dynamical dark energy and examines various beyond‑ΛCDM scenarios and their implications for cosmological tensions like t…
astro-ph.CO2026
Model-Independent Indication for a Localized Anomaly in the Late-Time Expansion History
Shibendu Gupta Choudhury, Purba Mukherjee, Eleonora Di Valentino +1
Using a model‑independent spline reconstruction of distances from DESI BAO data and DES supernovae, the authors find a localized ~3.5σ deviation from the Planck ΛCDM expansion hist…