activity
20202026
most citedThe CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

299 citations · 2.2k across the 54 of their papers we have counts for

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Showing 2026Show all

5 papers · 1 filter

astro-ph.CO2026

When, Why, and How CMB Compression Fails

Davide Pedrotti, William Giarè, Hanyu Cheng +1

We test when compressed CMB likelihoods can be reliably used to constrain new physics beyond CDM, formulating concrete criteria for \textit{when}, \textit{why}, and \textit{how}…

astro-ph.CO2026

Intertwined Constraints in Extended Cosmologies: Dark Energy, Curvature, Neutrinos, and Inflation

William Giarè, Dong Ha Lee, Eleonora Di Valentino

We present a systematic reassessment of cosmological constraints beyond CDM by progressively relaxing the assumptions underlying Dark Energy (DE), Curvature, Neutrinos, and Infl…

astro-ph.CO2026

Unifying Early and Late Dark Energy: Dynamical Requirements and Obstructions

William Giarè, Jeremy Sakstein

We investigate whether early- and late-time dark energy could arise from a single scalar field. Adopting a bottom-up perspective, we first identify the sequence of dynamical regime…

astro-ph.CO2026

Gamma-Ray Bursts as an Independent High-Redshift Probe of Dark Energy

Maria Giovanna Dainotti, Aleksander Łukasz Lenart, Biagio De Simone +6

Testing the CDM model requires cosmological probes spanning the wide redshift interval between Type Ia Supernovae (SNe Ia, ) and the Cosmic Microwave Background (C…

astro-ph.CO2026★ 1 cited

Robust Preference for Dark Sector Interactions

Tian-Nuo Li, William Giarè, Guo-Hong Du +4

Recent DESI baryon acoustic oscillation data reveal deviations from CDM cosmology, conventionally attributed to dynamical dark energy (DE). We demonstrate that these deviations…