宇宙空洞：揭示宇宙奥秘的新探针
宇宙学与河外天体物理
2019-03-14 v1
摘要
宇宙空洞作为宇宙中密度较低的区块，是提取宇宙学信息的极具前景的实验室。凭借其独特低密度特征，空洞对中微子和暗能量等弥散成分极为敏感，并且代表了研究引力修正的理想环境，此类修正的效应预计在那里更为显著。稳健的空洞相关观测量，例如空洞周围的红移空间畸变（RSD）与弱引力透镜，是追踪和检验新物理的有前景途径。宇宙大尺度结构的宇宙学分析主要依赖于高密度区域。当前与未来的巡天旨在优化从这些区域提取宇宙学信息，却使空洞未被充分利用。具备成像能力的密集大面积光谱巡天是充分发挥空洞威力的理想选择。除助力阐明暗能量、修正引力与中微子的本质外，该巡天还将提供低密度区域的详细地图，带来观测与研究迄今未被充分探索的星系群体的空前机遇。
引用
@article{arxiv.1903.05161,
title = {Cosmic voids: a novel probe to shed light on our Universe},
author = {Alice Pisani and Elena Massara and David N. Spergel and David Alonso and Tessa Baker and Yan-Chuan Cai and Marius Cautun and Christopher Davies and Vasiliy Demchenko and Olivier Doré and Andy Goulding and Mélanie Habouzit and Nico Hamaus and Adam Hawken and Christopher M. Hirata and Shirley Ho and Bhuvnesh Jain and Christina D. Kreisch and Federico Marulli and Nelson Padilla and Giorgia Pollina and Martin Sahlén and Ravi K. Sheth and Rachel Somerville and Istvan Szapudi and Rien van de Weygaert and Francisco Villaescusa-Navarro and Benjamin D. Wandelt and Yun Wang},
journal= {arXiv preprint arXiv:1903.05161},
year = {2019}
}
备注
Science White Paper for the Astro2020 Decadal Survey, 5 pages text, 14 pages with references and affiliations