{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/lyacolore-synthetic-datasets-for-current-and","title":"LyaCoLoRe: Synthetic Datasets for Current and Future Lyman-${\\alpha}$ Forest BAO Surveys","arxiv_id":"1912.02763","date":"2019-12-05","proceeding":null,"authors":["James Farr","Andreu Font-Ribera","Hélion du Mas des Bourboux","Andrea Muñoz-Gutiérrez","Francisco Javier Sanchez Lopez","Andrew Pontzen","Alma Xochitl González-Morales","David Alonso","David Brooks","Peter Doel","Thomas Etourneau","Julien Guy","Jean-Marc Le Goff","Axel de al Macorra","Nathalie Palanque-Delabrouille","Ignasi Pérez-Ràfols","James Rich","Anže Slosar","Gregory Tarle","Duan Yutong","Kai Zhang"],"abstract":"The statistical power of Lyman-${\\alpha}$ forest Baryon Acoustic Oscillation (BAO) measurements is set to increase significantly in the coming years as new instruments such as the Dark Energy Spectroscopic Instrument deliver progressively more constraining data. Generating mock datasets for such measurements will be important for validating analysis pipelines and evaluating the effects of systematics. With such studies in mind, we present LyaCoLoRe: a package for producing synthetic Lyman-${\\alpha}$ forest survey datasets for BAO analyses. LyaCoLoRe transforms initial Gaussian random field skewers into skewers of transmitted flux fraction via a number of fast approximations. In this work we explain the methods of producing mock datasets used in LyaCoLoRe, and then measure correlation functions on a suite of realisations of such data. We demonstrate that we are able to recover the correct BAO signal, as well as large-scale bias parameters similar to literature values. Finally, we briefly describe methods to add further astrophysical effects to our skewers - high column density systems and metal absorbers - which act as potential complications for BAO analyses.","url_abs":"http://arxiv.org/abs/1912.02763v2","url_pdf":"http://arxiv.org/pdf/1912.02763v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"lyacolore-synthetic-datasets-for-current-and","repo_url":"https://github.com/igmhub/LyaCoLoRe","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}