Cosmic Background Radiation Studies at the South Pole

这个项目将测量宇宙微波的各向同性 背景辐射（CMBR）在几个波长和角度 使用南极站的射电望远镜进行测量， 南极洲 测量的波长将是3毫米，12毫米和 20毫米，波长被吸收的水蒸气在 因为南极是最干燥的居住地之一， 在地球上，它是一个很好的观测地点。 CMBR是宇宙中很早就产生的辐射， 宇宙的形成，它的分布提供了最好的 目前可以获得的信息， 宇宙被创造了。 到目前为止，所有CMBR观测都有 显示辐射是各向同性的，也就是说，波到达 地球从各个方向都有相同的强度。 可以肯定的 在某种程度上，辐射是各向异性的， 辐射失去各向同性的角度尺度是 对于区分不同的宇宙学 理论 这位调查员已经测量了 是有史以来最敏感的， 结果非常接近于排除一个标准 所谓的“冷暗物质”模型。

This project will measure the isotropy of the cosmic microwave background radiation (CMBR) at several wavelengths and angular scales using radio telescopes placed at South Pole Station, Antarctica. The wavelengths measured will be 3 mm, 12 mm and 20 mm, wavelengths that are absorbed by water vapor in the atmosphere, and because South Pole is one of the driest inhabited places on Earth, it is an excellent observing site. The CMBR is radiation that was produced very early in the formation of the universe, and its distribution provides the best information that can be obtained at the present time about how the universe was created. To date, all CMBR observations have shown the radiation to be isotropic, that is, the waves arrive at Earth with equal intensity from all directions. It is certain that at some level the radiation is anisotropic, and the level and angular scale at which the radiation loses its isotropy is very important for differentiating between various cosmological theories. This investigator has already made measurements from South Pole that are the most sensitive ever made anywhere, and the results are very close to ruling out one of the standard cosmologies, the so-called "cold dark matter" model.