#large-scale structure
33 papers · 1 filter
The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg of the sky
D. Anbajagane, C. Chang, A. Drlica-Wagner +78
The paper presents cosmological and astrophysical constraints derived from cosmic shear measurements of 270 million galaxies covering 13,000 deg², combining data from the DECADE pr…
A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
2pt Collaboration, Elisabeth Krause, Yosuke Kobayashi +23
The paper presents the first results of the "Beyond-2pt" community data challenge, where participants used various beyond‑two‑point galaxy clustering methods on high‑precision mock…
Dynamic Zoom Simulations of structure formation beyond standard cosmology
Riccardo Zangarelli, Marco Baldi, Federico Marinacci +1
The paper introduces a Dynamic Zoom Simulations (DZS) technique that reduces resolution outside an observer’s lightcone to speed up large‑scale cosmological simulations, and valida…
Cross-Correlating the Universe: The Gravitational Wave Background and Large-Scale Structure
Federico Semenzato, J. Andrew Casey-Clyde, Chiara M. F. Mingarelli +4
The paper proposes using cross‑correlations between gravitational‑wave background anisotropy maps and galaxy surveys to detect the imprint of unresolved supermassive black‑hole bin…
Mitigating galaxy systematics with gravitational wave clustering
Caterina Scarpel, Nicola Bellomo, Sarah Libanore +2
The paper demonstrates that clustering of gravitational‑wave events can be used as a complementary tracer to galaxies, reducing systematic errors and improving constraints on local…
Constraints on Ultra-Light Axions from the DESI DR1 Full Shape, Planck and ACT
Francesco Verdiani, Emanuele Castorina, Ennio Salvioni +2
The paper derives new limits on ultra-light axions as a small part of dark matter using galaxy clustering data from DESI DR1 together with CMB measurements from Planck and ACT.