COSMO-LYA
COSMO-LYA
About
Team
Collaborations
Funding
Publications
News
Outreach
Contact
Publications
A neural network emulator for the Lyman-α 1D flux power spectrum
The Lyman-α offers a unique avenue for studying the distribution of matter in the high redshift universe and extracting precise …
Laura Cabayol-Garcia
,
Jonás Chaves-Montero
,
Andreu Font-Ribera
,
Christian Pedersen
May 30, 2023
DOI
arXiv
New constraints on the expansion rate at redshift 2.3 from the Lyman-$α$ forest
We measure the expansion rate of the Universe at redshift z=2.3 from the anisotropy of Lyman-α (Lyα) forest correlations measured by …
Andrei Cuceu
,
Andreu Font-Ribera
,
Seshadri Nadathur
,
Benjamin Joachimi
,
Paul Martini
Sep 28, 2022
DOI
arXiv
The Alcock-Paczyński effect from Lyman-$α$ forest correlations: Analysis validation with synthetic data
The three-dimensional distribution of the Lyα forest has been extensively used to constrain cosmology through measurements of the …
Andrei Cuceu
,
Andreu Font-Ribera
,
Paul Martini
,
Benjamin Joachimi
,
Seshadri Nadathur
,
James Rich
,
Alma X. González-Morales
,
Hélion du Mas des Bourboux
,
James Farr
Sep 26, 2022
DOI
arXiv
Direct cosmological inference from three-dimensional correlations of the Lyman-$α$ forest
When performing cosmological inference, standard analyses of the Lyman-α (Lyα) three-dimensional correlation functions only consider …
Francesca Gerardi
,
Andrei Cuceu
,
Andreu Font-Ribera
,
Benjamin Joachimi
,
Pablo Lemos
Sep 22, 2022
DOI
arXiv
Compressing the cosmological information in one-dimensional correlations of the Lyman-$α$ forest
Observations of the Lyman-α (Lyα) forest from spectroscopic surveys such as BOSS/eBOSS, or the ongoing DESI, offer a unique window to …
Christian Pedersen
,
Andreu Font-Ribera
,
Nickolay Y. Gnedin
Sep 20, 2022
DOI
arXiv
The effect of quasar redshift errors on Lyman-$alpha$ forest correlation functions
Using synthetic Lyman-α forests from the Dark Energy Spectroscopic Instrument (DESI) survey, we present a study of the impact of errors …
Samantha Youles
,
Julian E Bautista
,
Andreu Font-Ribera
,
et al
May 13, 2022
DOI
arXiv
Non-linearities in the Lyman-$α$ forest and in its cross-correlation with dark matter halos
Three-dimensional correlations of the Lyman-α (Lyα) forest and cross correlations between the Lyα forest and quasars have been measured …
Jahmour J. Givans
,
Andreu Font-Ribera
,
Anže Slosar
,
Louise Seeyave
,
Christian Pedersen
,
Keir K. Rogers
,
Mathias Garny
,
Diego Blas
,
Vid Iršič
May 2, 2022
DOI
arXiv
CoLoRe: fast cosmological realisations over large volumes with multiple tracers
We present CoLoRe, a public software package to efficiently generate synthetic realisations of multiple cosmological surveys. CoLoRe …
César Ramírez-Pérez
,
Javier Sanchez
,
David Alonso
,
Andreu Font-Ribera
Nov 9, 2021
DOI
arXiv
Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory
We present the cosmological implications from final measurements of clustering using galaxies, quasars, and Lyα forests from the …
Shadab Alam
,
et al
Jul 17, 2020
DOI
arXiv
The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations with Ly$p̆alpha$~Forests
We present a measurement of baryonic acoustic oscillations (BAOs) from Lyα absorption and quasars at an effective redshift z=2.33 using …
Hélion du Mas des Bourboux
,
James Rich
,
Andreu Font-Ribera
,
et al
Jul 17, 2020
DOI
arXiv
