Detailed Record


The Lyman-α forest catalog from the Dark Energy Spectroscopic Instrument Early Data Release


Abstract ABSTRACT We present and validate the catalogue of Lyman-α forest fluctuations for 3D analyses using the Early Data Release (EDR) from the Dark Energy Spectroscopic Instrument (DESI) survey. We used 88 511 quasars collected from DESI Survey Validation (SV) data and the first two months of the main survey (M2). We present several improvements to the method used to extract the Lyman-α absorption fluctuations performed in previous analyses from the Sloan Digital Sky Survey (SDSS). In particular, we modify the weighting scheme and show that it can improve the precision of the correlation function measurement by more than 20 per cent. This catalogue can be downloaded from https://data.desi.lbl.gov/public/edr/vac/edr/lya/fuji/v0.3, and it will be used in the near future for the first DESI measurements of the 3D correlations in the Lyman-α forest.
Authors C. Ramírez-Pérez , Ignasi Pérez-Ràfols ORCID , Andreu Font-Ribera ORCID , Md Rizwanul Karim ORCID , E. Armengaud ORCID , J Bautista , S. F. Beltran ORCID , L Cabayol-Garcia , Zheng Cai ORCID , Solène Chabanier ORCID , Edmond Chaussidon ORCID , Jonás Chaves-Montero ORCID , Andrei Cuceu ORCID , R de la Cruz , J. García-Bellido ORCID , Alma X. González‐Morales ORCID , Chris Gordon ORCID , H. K. Herrera-Alcantar ORCID , Vid Iršič ORCID , Mustapha Ishak , Naim Göksel Karaçaylı ORCID , Zarija Lukić ORCID , Christopher J. Manser ORCID , P. Montero-Camacho , Lorenzo Napolitano University of WyomingORCID , Gustavo Niz ORCID , Matthew M. Pieri ORCID , Corentin Ravoux ORCID , Francesco Sinigaglia ORCID , Tu Tan ORCID , Michael Walther ORCID , Bo Wang ORCID , J. A. Aguilar ORCID , S. P. Ahlen ORCID , S. Bailey ORCID , D. Brooks ORCID , Todd Claybaugh , Kyle Dawson ORCID , Axel de la Macorra ORCID , Govinda Prasad Dhungana ORCID , P. Doel ORCID , Kevin Fanning ORCID , Jaime E. Forero-Romero ORCID , Satya Gontcho A Gontcho ORCID , J. Guy ORCID , K. Honscheid ORCID , R. Kehoe ORCID , T. S. Kisner ORCID , Martin Landriau ORCID , L. Le Guillou ORCID , M. E. Levi ORCID , C. Magneville , Paul Martini ORCID , Aaron M. Meisner ORCID , R. Miquel ORCID , John Moustakas ORCID , Eugene A. Mueller , A. Muñoz-Gutiérrez ORCID , Jundan Nie , N. Palanque‐Delabrouille ORCID , Will J. Percival ORCID , Graziano Rossi , E. Sánchez ORCID , Edward F. Schlafly ORCID , David J. Schlegel ORCID , H. Seo ORCID , G. Tarlé ORCID , B. A. Weaver , C. Yéche , Zhiming Zhou ORCID
Journal Info Oxford University Press | Monthly Notices of the Royal Astronomical Society , vol: 528 , iss: 4 , pages: 6666 - 6679
Publication Date 12/7/2023
ISSN 0035-8711
TypeKeyword Image article
Open Access bronze Bronze Access
DOI https://doi.org/10.1093/mnras/stad3781
KeywordsKeyword Image Sloan Digital Sky Survey (Score: 0.50908)