21 papers
Inference of matter power spectrum at z=0 using DESI DR1 Full-Shape data
R. Cereskaite, E. Mueller, C. Howlett +48
Measurements of galaxy distributions at large cosmic distances capture clustering from the past. In this study, we use a cosmological model to translate these observations into the…
Identifying Anomalous DESI Galaxy Spectra with a Variational Autoencoder
C. Nicolaou, R. P. Nathan, O. Lahav +43
The tens of millions of spectra being captured by the Dark Energy Spectroscopic Instrument (DESI) provide tremendous discovery potential. In this work we show how Machine Learning,…
DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG
E. Fernández-GarcÃa, F. Prada, A. Smith +64
The aim of this work is to construct mock galaxy catalogues that accurately reproduce the redshift evolution of galaxy number density, clustering statistics, and baryonic propertie…
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…
Updated cosmological constraints on axion dark energy with DESI
L. A. Ureña-López, F. Lozano-RodrÃguez, J. O. Román-Herrera +35
We present updated constraints on the parameters of an axion dark energy model, for which we took into account the properties of its characteristic potential and its full cosmologi…
Testing gravitational physics by combining DESI DR1 and weak lensing datasets using the E_G estimator
S. J. Rauhut, C. Blake, U. Andrade +61
The action of gravitational physics across space-time creates observable signatures in the behaviour of light and matter. We perform combined-probe studies using data from the Bary…