论文标题
使用Lunar火山口射手望远镜探测宇宙黑暗时代
Probing the Cosmic Dark Ages with the Lunar Crater Radio Telescope
论文作者
论文摘要
宇宙的黑暗年龄代表了宇宙早期演变的时期，在CMB光子与物质的脱钩之后立即开始，并以第一颗恒星和星系的形成结束。来自中性氢原子的HI信号是我们了解宇宙宇宙学历史上这一关键阶段的唯一机制，并回答了有关标准宇宙学模型，暗物质物理学和通胀的有效性的基本问题。由于宇宙学的红移，现在只能在3-30〜MHz频带中观察到该信号，该频带被电离层阻止到达地球表面。在本文中，我们介绍了Lunar火山口射电望远镜的设计，该望远镜打算通过在月球远处的月球火山口内部署一个公里大小的抛物线反射器网格，并将接收器悬挂在其重点的重点上，以进行空前的测量。
The Cosmic Dark Ages represent the period in the early evolution of the Universe, starting immediately after the decoupling of CMB photons from matter, and ending with the formation of the first stars and galaxies. The HI signal from the neutral hydrogen atoms is the only mechanism for us to understand this crucial phase in the cosmological history of the Universe and answer fundamental questions about the validity of the standard cosmological model, dark matter physics, and inflation. Due to cosmological redshift, this signal is now only observable in the 3-30~MHz frequency band, which is blocked from reaching the surface of the Earth by the ionosphere. In this paper, we present the design of the Lunar Crater Radio Telescope that intends to carry out unprecedented measurements of this signal by deploying a kilometer-sized parabolic reflector mesh inside a lunar crater on the far side of the Moon and suspending a receiver at its focus.
