#galaxy clustering
6 papers · 1 filter
Searching for signatures of inflationary massive fields in DESI Imaging data and Stage-V galaxy surveys
Walter Riquelme, Santiago Avila, Lucas Pinol +2
The paper studies how massive fields present during inflation could leave detectable signatures in galaxy clustering, using DESI imaging data and forecasting the capability of futu…
The VST ATLAS Survey IV: Galaxy, LRG and QSO bias and HODs via ACT CMB Lensing
Harshnoor Kaur, T. Shanks, S. Bose +1
The paper measures the clustering bias and halo occupation of VST ATLAS galaxies, luminous red galaxies, and quasars by cross‑correlating their distributions with the high‑resoluti…
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…
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.
Cosmology from Nx2pt Analyses of SKAO Wide-Area Surveys
Ian Harrison, Ziad Sakr, Giulia Piccirilli +7
The paper forecasts how combined analyses of galaxy clustering, weak lensing, galaxy‑galaxy lensing and 21 cm intensity mapping from SKA‑Mid surveys can measure ΛCDM parameters to…
Probing the Baryon Distribution with Fast Radio Bursts
Manisha Caleb, Jéferson A. S. Fortunato, Steffen Hagstotz +12
The paper investigates how fast radio bursts observed with the Square Kilometre Array can be used to map the distribution of baryonic matter from cosmological to galactic scales, b…