暗能量巡天第三年结果：多探针建模策略与验证
宇宙学与河外天体物理
2021-05-31 v1
摘要
本文详述了建模流程，并验证了 DES 第三年星系成团与弱引力透镜联合分析（所谓“32pt”分析）的基线分析选择。这些分析选择包括宇宙学探针的具体组合、宇宙学和系统误差参数的先验、系统效应的模型参数化及相关近似，以及模型假设得到验证的角尺度。我们使用合成数据向量运行了大量模拟似然分析，以测试我们基线分析的鲁棒性。我们证明 DES 第三年建模流程，包括经过定标的尺度截断，相对于 DES 第三年分析的约束能力而言足够精确。我们的系统误差缓解策略考虑了天体物理系统误差，如星系偏袒、内禀对齐、源与透镜放大、重子效应和源成团，以及物质功率谱、约化剪切和估计器效应建模中的不确定性。我们进一步证明两个独立开发的建模流程之间高度一致，从而排除了由数值实现引起的任何残余不确定性。
引用
@article{arxiv.2105.13548,
title = {Dark Energy Survey Year 3 Results: Multi-Probe Modeling Strategy and Validation},
author = {E. Krause and X. Fang and S. Pandey and L. F. Secco and O. Alves and H. Huang and J. Blazek and J. Prat and J. Zuntz and T. F. Eifler and N. MacCrann and J. DeRose and M. Crocce and A. Porredon and B. Jain and M. A. Troxel and S. Dodelson and D. Huterer and A. R. Liddle and C. D. Leonard and A. Amon and A. Chen and J. Elvin-Poole and A. Ferté and J. Muir and Y. Park and S. Samuroff and A. Brandao-Souza and N. Weaverdyck and G. Zacharegkas and R. Rosenfeld and A. Campos and P. Chintalapati and A. Choi and E. Di Valentino and C. Doux and K. Herner and P. Lemos and J. Mena-Fernández and Y. Omori and M. Paterno and M. Rodriguez-Monroy and P. Rogozenski and R. P. Rollins and A. Troja and I. Tutusaus and R. H. Wechsler and T. M. C. Abbott and M. Aguena and S. Allam and F. Andrade-Oliveira and J. Annis and D. Bacon and E. Baxter and K. Bechtol and G. M. Bernstein and D. Brooks and E. Buckley-Geer and D. L. Burke and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and F. J. Castander and R. Cawthon and C. Chang and M. Costanzi and L. N. da Costa and M. E. S. Pereira and J. De Vicente and S. Desai and H. T. Diehl and P. Doel and S. Everett and A. E. Evrard and I. Ferrero and B. Flaugher and P. Fosalba and J. Frieman and J. García-Bellido and E. Gaztanaga and D. W. Gerdes and T. Giannantonio and D. Gruen and R. A. Gruendl and J. Gschwend and G. Gutierrez and W. G. Hartley and S. R. Hinton and D. L. Hollowood and K. Honscheid and B. Hoyle and E. M. Huff and D. J. James and K. Kuehn and N. Kuropatkin and O. Lahav and M. Lima and M. A. G. Maia and J. L. Marshall and P. Martini and P. Melchior and F. Menanteau and R. Miquel and J. J. Mohr and R. Morgan and J. Myles and A. Palmese and F. Paz-Chinchón and D. Petravick and A. Pieres and A. A. Plazas Malagón and E. Sanchez and V. Scarpine and M. Schubnell and S. Serrano and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and E. Suchyta and G. Tarle and D. Thomas and C. To and T. N. Varga and J. Weller},
journal= {arXiv preprint arXiv:2105.13548},
year = {2021}
}
备注
part of the DES year-3 combined 2-point function analysis; see https://www.darkenergysurvey.org/des-year-3-cosmology-results-papers/ for the full DES Y3 cosmology release