宇宙奥秘与氢21厘米线：用月球观测弥合差距
Cosmic mysteries and the hydrogen 21-cm line: bridging the gap with lunar observations
AI总结：
本文探讨了月球观测氢21厘米信号的科学价值，指出其相较于地面观测能更精确地探测黑暗时代和宇宙黎明，从而检验宇宙学、暗物质及第一代恒星与黑洞的性质。
摘要：
氢21厘米信号预计将成为探测年轻宇宙最丰富的探针，涵盖被称为宇宙黑暗时代、第一代恒星和黑洞形成的宇宙黎明，以及再电离时代等时期。该信号是破译宇宙历史早期阶段发生的过程的关键。在这篇观点文章中，我们讨论了月球观测21厘米信号的科学价值，及其相较于成本更低的地面观测的优势。月球是射电宇宙学的理想地点，将实现对低频射电天空的精确观测。此类观测的独特之处在于，它们将提供一个无与伦比的机会，利用黑暗时代21厘米信号检验宇宙学和暗物质的本质。同样诱人的是，它有机会获得比地面观测更清晰的宇宙黎明图景，使我们能够探究第一代恒星和黑洞的性质。
英文摘要：
The hydrogen 21-cm signal is predicted to be the richest probe of the young Universe including eras known as the cosmic Dark Ages, the Cosmic Dawn when the first star and black hole formed, and the Epoch of Reionization. This signal holds the key to deciphering processes that take place at the early stages of cosmic history. In this opinion piece, we discuss the potential scientific merit of lunar observations of the 21-cm signal and their advantages over more affordable terrestrial efforts. The moon is a prime location for radio cosmology which will enable precision observations of the low-frequency radio sky. The uniqueness of such observations is that they will provide an unparalleled opportunity to test cosmology and the nature of dark matter using the Dark Ages 21-cm signal. No less enticing is the opportunity to obtain a much clearer picture of Cosmic Dawn than what is achievable from the ground, which will allow us to probe properties of the first stars and black holes.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
