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arXiv 1707.09220astro-ph.CO
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普朗克任务简介

An Introduction to the Planck Mission

David L Clements

摘要:

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温度接近均匀的2.73 K的黑体辐射。该辐射场不是完全均匀的,但在其中包括δ(T)/T ~ 10 E-5级的温度各向异性。早期宇宙的物理过程在这些CMB各向异性中留下了它们的指纹,这些CMB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。普朗克任务是欧洲航天局(ESA)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。本文介绍了普朗克任务,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,以及该任务迄今为止产生的关键宇宙学结果。

英文摘要:

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 2.73K covering the entire sky. This radiation field is not perfectly uniform, but includes within it temperature anisotropies of order delta(T)/T ~ 10E-5. 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 (ESA) 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.

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。

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