暗能量巡天第三年结果：弯曲天空弱透镜质量图重建
宇宙学与河外天体物理
2021-11-23 v2
摘要
我们基于暗能量巡天（DES）第三年（Y3）弱引力透镜数据集呈现了重建的收敛图（即质量图）。质量图是观测星系前景中密度场（主要为暗物质）的加权投影。我们使用四种重建方法，每种均为具有不同地图先验概率模型的最大后验估计：Kaiser-Squires、零B模式先验、高斯先验和稀疏性先验。所有方法均在天球上实现，以适应DES Y3数据的大天空覆盖。我们使用与DES Y3数据紧密匹配的含模拟数据的真实CDM模拟对方法进行比较。我们在地图层面量化了方法性能，然后将重建方法应用于DES Y3数据，并进行了系统误差效应检验。这些地图与光学前景宇宙网结构进行比较，并用于评估宇宙空洞轮廓的透镜信号。所恢复的暗物质图覆盖了迄今任何星系弱透镜图的最大天空比例。
引用
@article{arxiv.2105.13539,
title = {Dark Energy Survey Year 3 results: curved-sky weak lensing mass map reconstruction},
author = {N. Jeffrey and M. Gatti and C. Chang and L. Whiteway and U. Demirbozan and A. Kovacs and G. Pollina and D. Bacon and N. Hamaus and T. Kacprzak and O. Lahav and F. Lanusse and B. Mawdsley and S. Nadathur and J. L. Starck and P. Vielzeuf and D. Zeurcher and A. Alarcon and A. Amon and K. Bechtol and G. M. Bernstein and A. Campos and A. Carnero Rosell and M. Carrasco Kind and R. Cawthon and R. Chen and A. Choi and J. Cordero and C. Davis and J. DeRose and C. Doux and A. Drlica-Wagner and K. Eckert and F. Elsner and J. Elvin-Poole and S. Everett and A. Ferté and G. Giannini and D. Gruen and R. A. Gruendl and I. Harrison and W. G. Hartley and K. Herner and E. M. Huff and D. Huterer and N. Kuropatkin and M. Jarvis and P. F. Leget and N. MacCrann and J. McCullough and J. Muir and J. Myles and A. Navarro-Alsina and S. Pandey and J. Prat and M. Raveri and R. P. Rollins and A. J. Ross and E. S. Rykoff and C. Sánchez and L. F. Secco and I. Sevilla-Noarbe and E. Sheldon and T. Shin and M. A. Troxel and I. Tutusaus and T. N. Varga and B. Yanny B. Yin and Y. Zhang and J. Zuntz and T. M. C. Abbott and M. Aguena and S. Allam and F. Andrade-Oliveira and M. R. Becker and E. Bertin and S. Bhargava and D. Brooks and D. L. Burke and J. Carretero and F. J. Castander and C. Conselice and M. Costanzi and M. Crocce and L. N. da Costa and M. E. S. Pereira and J. De Vicente and S. Desai and H. T. Diehl and J. P. Dietrich and P. Doel and I. Ferrero and B. Flaugher and P. Fosalba and J. García-Bellido and E. Gaztanaga and D. W. Gerdes and T. Giannantonio and J. Gschwend and G. Gutierrez and S. R. Hinton and D. L. Hollowood and B. Hoyle and B. Jain and D. J. James and M. Lima and M. A. G. Maia and M. March and J. L. Marshall and P. Melchior and F. Menanteau and R. Miquel and J. J. Mohr and R. Morgan and R. L. C. Ogando and A. Palmese and F. Paz-Chinchón and A. A. Plazas and M. Rodriguez-Monroy and A. Roodman and E. Sanchez and V. Scarpine and S. Serrano and M. Smith and M. Soares-Santos and E. Suchyta and G. Tarle and D. Thomas and C. To and J. Weller},
journal= {arXiv preprint arXiv:2105.13539},
year = {2021}
}
备注
Final updates matching published MNRAS version