An introduction to the Planck mission
An introduction to the Planck mission
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DOI：
10.1080/00107514.2017.1362139
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发表时间：
2017-07
影响因子：
2
通讯作者：
D. Clements
中科院分区：
文献类型：
--
作者：
D. Clements
宇宙微波背景（CMB）是宇宙中最古老的光。今天，它被看作是覆盖整个天空的接近均匀温度2.73 K的黑体辐射。这种辐射场不是完全均匀的，但在其中包括温度各向异性的顺序。早期宇宙中的物理过程在这些CMB各向异性中留下了指纹，后来发展成为我们今天看到的星系和大尺度结构。因此，CMB各向异性观测是宇宙学的关键工具。普朗克使命是欧洲航天局对CMB的探测。其独特的设计允许CMB各向异性测量更高的精度在更广泛的规模比以往任何时候。本文介绍了普朗克使命，包括它的目标和动机，它的仪器和技术，CMB的物理，如何克服污染的天体物理前景，和关键的宇宙学结果，这使命迄今为止产生的。
The Cosmic Microwave Background (CMB) is the oldest light in the universe. It is seen today as black body radiation at a near-uniform temperature of 2.73 K covering the entire sky. This radiation field is not perfectly uniform, but includes within it temperature anisotropies of order . Physical processes in the early universe have left their fingerprints in these CMB anisotropies, which later grew to become the galaxies and large scale structure we see today. CMB anisotropy observations are thus a key tool for cosmology. The Planck mission was the European Space Agency’s probe of the CMB. Its unique design allowed CMB anisotropies to be measured to greater precision over a wider range of scales than ever before. This article provides an introduction to the Planck mission, including its goals and motivation, its instrumentation and technology, the physics of the CMB, how the contaminating astrophysical foregrounds were overcome, and the key cosmological results that this mission has so far produced.