基于暗能量巡天第一年数据的谐波空间宇宙剪切：与配置空间结果的一致性
宇宙学与河外天体物理
2022-10-11 v2
摘要
我们利用暗能量巡天（DES-Y1）收集的第一年数据在谐波空间中进行宇宙剪切分析。我们使用 Metacalibration 星表测量宇宙弱引力透镜剪切功率谱，并在 CosmoSIS 框架内执行似然分析。我们基于重子效应污染设置尺度截断，并将红移与剪切校准不确定性以及内禀对齐建模。我们采用解析计算得到的解析协方差矩阵作为基准，该矩阵考虑了高斯项中的掩膜几何，并包含非高斯贡献。一套 1200 个 lognormal 模拟用于验证谐波空间管线与协方差矩阵。我们执行了一系列压力测试以衡量谐波空间分析的稳健性。最后，我们使用配置空间中的 DES-Y1 管线执行类似的似然分析并比较两者结果，证明了它们在估计宇宙学参数 、 和 时的一致性。本文实现并验证的方法将使我们能在即将到来的 DES 数据中执行一致的谐波空间分析。
引用
@article{arxiv.2111.07203,
title = {Cosmic Shear in Harmonic Space from the Dark Energy Survey Year 1 Data: Compatibility with Configuration Space Results},
author = {H. Camacho and F. Andrade-Oliveira and A. Troja and R. Rosenfeld and L. Faga and R. Gomes and C. Doux and X. Fang and M. Lima and V. Miranda and T. F. Eifler and O. Friedrich and M. Gatti and G. M. Bernstein and J. Blazek and S. L. Bridle and A. Choi and C. Davis and J. DeRose and E. Gaztanaga and D. Gruen and W. G. Hartley and B. Hoyle and M. Jarvis and N. MacCrann and J. Prat and M. M. Rau and S. Samuroff and C. Sánchez and E. Sheldon and M. A. Troxel and P. Vielzeuf and J. Zuntz and T. M. C. Abbott and M. Aguena and S. Allam and J. Annis and D. Bacon and E. Bertin and D. Brooks and D. L. Burke and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and F. J. Castander and R. Cawthon 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 D. Friedel and J. Frieman and J. García-Bellido and D. W. Gerdes and R. A. Gruendl and J. Gschwend and G. Gutierrez and S. R. Hinton and D. L. Hollowood and K. Honscheid and D. Huterer and D. J. James and K. Kuehn and N. Kuropatkin and O. Lahav and M. A. G. Maia and J. L. Marshall and P. Melchior and F. Menanteau and R. Miquel and R. Morgan and F. Paz-Chinchón and D. Petravick and A. Pieres and A. A. Plazas Malagón and K. Reil and M. Rodriguez-Monroy 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 and R. D. Wilkinson},
journal= {arXiv preprint arXiv:2111.07203},
year = {2022}
}
备注
16 pages, 11 figures. This version matches the published one