activity
20242026
most citedThe CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics

299 citations · 304 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.CO2026

JWST evidence for a sharp "Cosmic Daybreak" at z = 15

Jiashuo Zhang, Tom Broadhurst, Tzihong Chiueh +9

Luminous young galaxies have been uncovered with relative ease by JWST, extending to z=14.5, so it is puzzling that deeper spectroscopy of fainter candidates now finds only interlo…

astro-ph.GA2026

First Statistical Study of Over 100 Magnified Stellar Events at Redshift with JWST

J. M. Palencia, Fengwu Sun, J. M. Diego +25

Highly magnified stars at cosmological distances () become detectable thanks to microlensing by intracluster stars near the critical curves of galaxy clusters. Multi…

astro-ph.CO2025★ 4 cited

Signatures of Fuzzy Dark Matter Inside Radial Critical Curves

J. M. Palencia, Paloma Morilla, Sung Kei Li +5

We investigate the strong gravitational lensing properties of fuzzy dark matter (FDM) halos, focusing on the magnification properties near radial critical curves (CCs). Using simul…

astro-ph.CO2025★ 299 cited

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.…

astro-ph.CO2025

Multi-copy Axion Transfer Function and Observational Implications of Effective de Broglie Scales

Jiashuo Zhang, Tom Broadhurst, Jeremy Lim +2

Ultra-light axions are viable fuzzy/wave-like dark matter (DM) candidates generically predicted by the String Axiverse paradigm with multiple particle copies, whereas most of th…

astro-ph.CO2024★ 1 cited

Dark Matter distinguished by skewed microlensing in the "Dragon Arc"

Tom Broadhurst, Sung Kei Li, Amruth Alfred +18

Microlensed stars recently discovered by JWST & HST follow closely the winding critical curve of A370 along all sections of the ``Dragon Arc" traversed by the critical curve. These…