Euclid：来自空洞-透镜交叉相关的预测
宇宙学与河外天体物理
2023-02-08 v2
摘要
Euclid空间望远镜将巡天由密集星系样本示踪的大数据集宇宙空洞。在本工作中，我们估计其在利用角测光空洞聚类、星系弱透镜及其交叉相关时的预期表现。为此，我们实现了一种为Euclid测光数据集中的空洞定制的Fisher矩阵方法，并给出首个包含空洞-透镜相关的宇宙学参数预测。我们考察了两种探针设置，悲观与乐观，分别针对空洞聚类和星系透镜。我们在四种模型宇宙学中进行预测分析，考虑变化的总中微子质量和动力学暗能量(DE)状态方程，由CPL参数化描述。我们发现空洞聚类对和的约束与单独星系透镜相当，而由于两个探针在二维投影参数空间中的正交性，的误差减小。我们还注意到，整体上，包含空洞-透镜交叉相关信号将参数约束改善，并在悲观和乐观情景下分别将联合空洞聚类与星系透镜的图优度(FoM)提升和。最后，当进一步与作为独立探针的光谱星系聚类结合时，我们发现最具竞争力情形下FoM相对于将弱透镜与光谱星系聚类作为独立探针的组合增加4倍。本工作给出的预测表明，测光空洞聚类及其与星系透镜的交叉相关值得在Euclid星系巡天数据分析中加以利用，并有望提升其约束能力，尤其在、、中微子质量和DE演化上。
引用
@article{arxiv.2206.14211,
title = {Euclid: Forecasts from the void-lensing cross-correlation},
author = {M. Bonici and C. Carbone and S. Davini and P. Vielzeuf and L. Paganin and V. Cardone and N. Hamaus and A. Pisani and A. J. Hawken and A. Kovacs and S. Nadathur and S. Contarini and G. Verza and I. Tutusaus and F. Marulli and L. Moscardini and M. Aubert and C. Giocoli and A. Pourtsidou and S. Camera and S. Escoffier and A. Caminata and M. Martinelli and M. Pallavicini and V. Pettorino and Z. Sakr and D. Sapone and G. Testera and S. Tosi and V. Yankelevich and A. Amara and N. Auricchio and M. Baldi and D. Bonino and E. Branchini and M. Brescia and J. Brinchmann and V. Capobianco and J. Carretero and M. Castellano and S. Cavuoti and R. Cledassou and G. Congedo and L. Conversi and Y. Copin and L. Corcione and F. Courbin and M. Cropper and A. Da Silva and H. Degaudenzi and M. Douspis and F. Dubath and C. A. J. Duncan and X. Dupac and S. Dusini and A. Ealet and S. Farrens and S. Ferriol and P. Fosalba and M. Frailis and E. Franceschi and M. Fumana and P. Gomez-Alvarez and B. Garilli and B. Gillis and A. Grazian and F. Grupp and L. Guzzo and S. V. H. Haugan and W. Holmes and F. Hormuth and A. Hornstrup and K. Jahnke and M. Kummel and S. Kermiche and A. Kiessling and M. Kilbinger and M. Kunz and H. Kurki-Suonio and R. Laureijs and S. Ligori and P. B. Lilje and I. Lloro and E. Maiorano and O. Mansutti and O. Marggraf and K. Markovic and R. Massey and E. Medinaceli and M. Melchior and M. Meneghetti and G. Meylan and M. Moresco and E. Munari and S. M. Niemi and C. Padilla and S. Paltani and F. Pasian and K. Pedersen and W. J. Percival and S. Pires and G. Polenta and M. Poncet and L. Popa and F. Raison and R. Rebolo and A. Renzi and J. Rhodes and E. Rossetti and R. Saglia and B. Sartoris and M. Scodeggio and A. Secroun and G. Seidel and C. Sirignano and G. Sirri and L. Stanco and J. -L. Starck and C. Surace and P. Tallada-Crespi and D. Tavagnacco and A. N. Taylor and I. Tereno and R. Toledo-Moreo and F. Torradeflot and E. A. Valentijn and L. Valenziano and Y. Wang and J. Weller and G. Zamorani and J. Zoubian and S. Andreon},
journal= {arXiv preprint arXiv:2206.14211},
year = {2023}
}
备注
22 pages, 9 figures - published in A&A