欧几里得任务准备：VII. 欧几里得宇宙学探针的预言验证
宇宙学与河外天体物理
2020-11-26 v2
摘要
欧几里得空间望远镜将测量星系的形状与红移，以重建宇宙的膨胀历史与宇宙结构的增长。迄今为止，基于不同方法论与数值实现（针对不同的观测探针及其组合而开发）对实验预期性能（即宇宙学参数的预测约束）的估计，尚缺乏统一标准。本文给出经过验证的预言，结合了不同宇宙学探针的理论与观测专长。此举旨在为学界提供可靠的欧几里得宇宙学预言数值代码与方法。我们详述了用于 Fisher 矩阵预言的方法论，应用于星系成团、弱引力透镜及其组合。我们估算了欧几里得预言所需的精度，并概述了其开发方法论。随后我们比较并改进了不同的数值实现，使所有情形下宇宙学参数误差的不确定性均小于所需精度。此外，我们提供了经验证的实现细节，读者可据此在需要时验证其自有代码。我们给出了欧几里得的新宇宙学预言。我们发现结果依赖于具体的宇宙学模型及每种设定中剩余自由度，即平坦或非平坦空间宇宙学，或非线性尺度上的不同截断。经验证的数值实现现已可可靠用于任意设定。我们给出了乐观与悲观两种设定选择下的结果。我们证明，对于超越宇宙学常数的模型，交叉相关的影响尤为显著，并可能使暗能量品质因数（Figure of Merit）至少提升三倍。
引用
@article{arxiv.1910.09273,
title = {Euclid preparation: VII. Forecast validation for Euclid cosmological probes},
author = {Euclid Collaboration and A. Blanchard and S. Camera and C. Carbone and V. F. Cardone and S. Casas and S. Clesse and S. Ilić and M. Kilbinger and T. Kitching and M. Kunz and F. Lacasa and E. Linder and E. Majerotto and K. Markovič and M. Martinelli and V. Pettorino and A. Pourtsidou and Z. Sakr and A. G. Sánchez and D. Sapone and I. Tutusaus and S. Yahia-Cherif and V. Yankelevich and S. Andreon and H. Aussel and A. Balaguera-Antolínez and M. Baldi and S. Bardelli and R. Bender and A. Biviano and D. Bonino and A. Boucaud and E. Bozzo and E. Branchini and S. Brau-Nogue and M. Brescia and J. Brinchmann and C. Burigana and R. Cabanac and V. Capobianco and A. Cappi and J. Carretero and C. S. Carvalho and R. Casas and F. J. Castander and M. Castellano and S. Cavuoti and A. Cimatti and R. Cledassou and C. Colodro-Conde and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and L. Corcione and J. Coupon and H. M. Courtois and M. Cropper and A. Da Silva and S. de la Torre and D. Di Ferdinando and F. Dubath and F. Ducret and C. A. J. Duncan and X. Dupac and S. Dusini and G. Fabbian and M. Fabricius and S. Farrens and P. Fosalba and S. Fotopoulou and N. Fourmanoit and M. Frailis and E. Franceschi and P. Franzetti and M. Fumana and S. Galeotta and W. Gillard and B. Gillis and C. Giocoli and P. Gómez-Alvarez and J. Graciá-Carpio and F. Grupp and L. Guzzo and H. Hoekstra and F. Hormuth and H. Israel and K. Jahnke and E. Keihanen and S. Kermiche and C. C. Kirkpatrick and R. Kohley and B. Kubik and H. Kurki-Suonio and S. Ligori and P. B. Lilje and I. Lloro and D. Maino and E. Maiorano and O. Marggraf and N. Martinet and F. Marulli and R. Massey and E. Medinaceli and S. Mei and Y. Mellier and B. Metcalf and J. J. Metge and G. Meylan and M. Moresco and L. Moscardini and E. Munari and R. C. Nichol and S. Niemi and A. A. Nucita and C. Padilla and S. Paltani and F. Pasian and W. J. Percival and S. Pires and G. Polenta and M. Poncet and L. Pozzetti and G. D. Racca and F. Raison and A. Renzi and J. Rhodes and E. Romelli and M. Roncarelli and E. Rossetti and R. Saglia and P. Schneider and V. Scottez and A. Secroun and G. Sirri and L. Stanco and J. -L. Starck and F. Sureau and P. Tallada-Crespí and D. Tavagnacco and A. N. Taylor and M. Tenti and I. Tereno and R. Toledo-Moreo and F. Torradeflot and L. Valenziano and T. Vassallo and G. A. Verdoes Kleijn and M. Viel and Y. Wang and A. Zacchei and J. Zoubian and E. Zucca},
journal= {arXiv preprint arXiv:1910.09273},
year = {2020}
}
备注
74 pages, 13 figures, 18 tables. Acknowledgements include Authors' contributions. Abstract abridged. Version accepted for publication in A&A