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From the 3 of 6 linked papers with an AI index.

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6 papers

astro-ph.CO2026

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…

astro-ph.CO2026

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…

astro-ph.CO2026

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…

astro-ph.CO2025

The Lyman- Forest from LBGs: First 3D Correlation Measurement with DESI and Prospects for Cosmology

Hiram K. Herrera-Alcantar, Eric Armengaud, Christophe Yèche +50

The Lyman- (Ly) forest is a key tracer of large-scale structure at redshifts z > 2, traditionally studied using spectra of quasars. Here, we explore the viability Lyman Bre…

astro-ph.CO2025

DESI DR1 Ly forest: 3D full-shape analysis and cosmological constraints

Andrei Cuceu, Hiram K. Herrera-Alcantar, Calum Gordon +75

We perform an analysis of the full shapes of Lyman- (Ly) forest correlation functions measured from the first data release (DR1) of the Dark Energy Spectroscopic Instrument…

astro-ph.CO2025

Modelling the impact of quasar redshift errors on the full-shape analysis of correlations in the Lyman- forest

Calum Gordon, Andrei Cuceu, Andreu Font-Ribera +45

In preparation for the first cosmological measurements from the full-shape of the Lyman- (Ly) forest from DESI, we must carefully model all relevant systematics that might…