DESI 2024 IV：来自莱曼阿尔法森林的重子声学振荡
宇宙学与河外天体物理
2025-02-03 v4
摘要
我们利用暗能量光谱仪（DESI）第一年数据集，对高红移类星体莱曼（Ly）森林的重子声学振荡（BAO）进行了测量。本分析使用了超过 条 Ly 森林光谱及其与超过 个类星体空间分布的相关性。本工作的一个关键方面是在盲测数据集上开发了新的分析方法。我们使用合成数据进行了严格测试，以确保在揭盲前方法和结果的可靠性。此外，我们进行了多次数据划分以评估结果的一致性，并仔细审查了各种分析方法以确认其稳健性。在给定声视界（）的情况下，我们在 处以 2\% 的精度测量了膨胀率， km/s/Mpc。类似地，我们给出了对相同红移处横向共动距离的 2.4\% 精度测量， Gpc。结合其他较低红移的 DESI BAO 测量结果，这些结果被用于一篇配套论文中以约束宇宙学参数。
引用
@article{arxiv.2404.03001,
title = {DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest},
author = {DESI Collaboration and A. G. Adame and J. Aguilar and S. Ahlen and S. Alam and D. M. Alexander and M. Alvarez and O. Alves and A. Anand and U. Andrade and E. Armengaud and S. Avila and A. Aviles and H. Awan and S. Bailey and C. Baltay and A. Bault and J. Bautista and J. Behera and S. BenZvi and F. Beutler and D. Bianchi and C. Blake and R. Blum and S. Brieden and A. Brodzeller and D. Brooks and E. Buckley-Geer and E. Burtin and R. Calderon and R. Canning and A. Carnero Rosell and R. Cereskaite and J. L. Cervantes-Cota and S. Chabanier and E. Chaussidon and J. Chaves-Montero and S. Chen and X. Chen and T. Claybaugh and S. Cole and A. Cuceu and T. M. Davis and K. Dawson and R. de la Cruz and A. de la Macorra and A. de Mattia and N. Deiosso and A. Dey and B. Dey and J. Ding and Z. Ding and P. Doel and J. Edelstein and S. Eftekharzadeh and D. J. Eisenstein and A. Elliott and P. Fagrelius and K. Fanning and S. Ferraro and J. Ereza and N. Findlay and B. Flaugher and A. Font-Ribera and D. Forero-Sánchez and J. E. Forero-Romero and C. Garcia-Quintero and E. Gaztañaga and H. Gil-Marín and S. Gontcho A Gontcho and A. X. Gonzalez-Morales and V. Gonzalez-Perez and C. Gordon and D. Green and D. Gruen and R. Gsponer and G. Gutierrez and J. Guy and B. Hadzhiyska and C. Hahn and M. M. S Hanif and H. K. Herrera-Alcantar and K. Honscheid and C. Howlett and D. Huterer and V. Iršič and M. Ishak and S. Juneau and N. G. Karaçayli and R. Kehoe and S. Kent and D. Kirkby and A. Kremin and A. Krolewski and Y. Lai and T. -W. Lan and M. Landriau and D. Lang and J. Lasker and J. M. Le Goff and L. Le Guillou and A. Leauthaud and M. E. Levi and T. S. Li and E. Linder and K. Lodha and C. Magneville and M. Manera and D. Margala and P. Martini and M. Maus and P. McDonald and L. Medina-Varela and A. Meisner and J. Mena-Fernández and R. Miquel and J. Moon and S. Moore and J. Moustakas and E. Mueller and A. Muñoz-Gutiérrez and A. D. Myers and S. Nadathur and L. Napolitano and R. Neveux and J. A. Newman and N. M. Nguyen and J. Nie and G. Niz and H. E. Noriega and N. Padmanabhan and E. Paillas and N. Palanque-Delabrouille and J. Pan and S. Penmetsa and W. J. Percival and M. M. Pieri and M. Pinon and C. Poppett and A. Porredon and F. Prada and A. Pérez-Fernández and I. Pérez-Ràfols and D. Rabinowitz and A. Raichoor and C. Ramírez-Pérez and S. Ramirez-Solano and M. Rashkovetskyi and C. Ravoux and M. Rezaie and J. Rich and A. Rocher and C. Rockosi and N. A. Roe and A. Rosado-Marin and A. J. Ross and G. Rossi and R. Ruggeri and V. Ruhlmann-Kleider and L. Samushia and E. Sanchez and C. Saulder and E. F. Schlafly and D. Schlegel and M. Schubnell and H. Seo and R. Sharples and J. Silber and F. Sinigaglia and A. Slosar and A. Smith and D. Sprayberry and T. Tan and G. Tarlé and S. Trusov and R. Vaisakh and D. Valcin and F. Valdes and M. Vargas-Magaña and L. Verde and M. Walther and B. Wang and M. S. Wang and B. A. Weaver and N. Weaverdyck and R. H. Wechsler and D. H. Weinberg and M. White and J. Yu and Y. Yu and S. Yuan and C. Yèche and E. A. Zaborowski and P. Zarrouk and H. Zhang and C. Zhao and R. Zhao and R. Zhou and H. Zou},
journal= {arXiv preprint arXiv:2404.03001},
year = {2025}
}
备注
This DESI Collaboration Key Publication is part of the 2024 publication series using the first year of observations (see https://data.desi.lbl.gov/doc/papers). Minor changes in v4, version accepted for publication in JCAP