论文标题
使用红移HI 21-CM信号研究宇宙黎明：简短评论
Studying Cosmic Dawn using redshifted HI 21-cm signal: A brief review
论文作者
论文摘要
在这篇评论文章中，我们简要概述了当前对与宇宙黎明的HI 21-CM信号相关的物理学的理解。我们讨论了宇宙黎明的不同阶段，因为环境气体和背景辐射随红移而演变。我们解决了全局21厘米信号的几种可能的加热源和辐射背景的后果。我们进一步回顾了目前对HI 21-CM信号的其他重要方面的观点，例如功率谱和成像。最后，我们强调了平方公里阵列和其他正在进行的/即将进行的实验的未来关键测量，这些测量将启发我们对早期宇宙的理解。
In this review article, we briefly outline our current understanding of the physics associated with the HI 21-cm signal from cosmic dawn. We discuss different phases of cosmic dawn as the ambient gas and the background radiations evolve with the redshift. We address the consequences of several possible heating sources and radiation background on the global 21-cm signal. We further review our present perspective of other important aspects of the HI 21-cm signal such as the power spectrum and imaging. Finally, we highlight the future key measurements of the Square Kilometre Array and other ongoing/upcoming experiments that will enlighten our understanding of the early Universe.
