#baryon acoustic oscillations
9 papers · 1 filter
CoLoRe-2LPT: Lyman- mock catalogues for the validation of DESI cosmological analyses
M. F. Ruiz-Herrera Bernal, S. Avila, A. Font-Ribera +90
The paper presents fast Lyman‑α forest mock catalogues generated with second‑order Lagrangian perturbation theory (2LPT) that accurately reproduce small‑scale clustering, BAO broad…
Validation of the DESI DR2 Ly forest full-shape analysis
M. Herbold, A. Cuceu, P. Martini +107
The paper validates the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 analysis of the Lyman‑α forest, focusing on extracting the Alcock‑Paczynski (AP) measurement from…
DESI DR2 Results IV: Alcock-Paczyński Measurements from the Lyman Alpha Forest and Cosmological Constraints
DESI Collaboration, A. G. Adame, J. Aguilar +164
The DESI DR2 analysis measures the Alcock‑Paczynski effect using the full shape of Lyman‑α forest auto‑ and cross‑correlations, achieving 1% precision at redshift 2.33 and providin…
Radio Recombination Line Contamination in Post-Reionization 21 cm Intensity Mapping
Pip Petersen, Yakov Faerman, Matthew McQuinn
The paper evaluates how radio recombination lines (RRLs) could contaminate post‑reionization 21 cm intensity‑mapping measurements, develops a formalism to predict their impact on t…
Robust Preference for Dark Sector Interactions
Tian-Nuo Li, William Giarè, Guo-Hong Du +4
The paper investigates whether interactions between dark matter and dark energy can explain recent DESI BAO observations, finding strong statistical evidence for such interactions…
Reconstructions of Horndeski Subclasses by Gaussian Processes
Marco C. Mendoza Marcos, Ana A. Avilez Lopez
The paper uses Gaussian Process regression to reconstruct two Horndeski scalar‑tensor gravity subclasses (Brans‑Dicke and Cubic Galileon) from late‑time cosmological observations,…