Planck 2015结果I.产品和科学成果概述
Planck 2015 results. I. Overview of products and scientific results
摘要:
欧洲空间局的普朗克卫星,致力于研究早期宇宙及其随后的演化,于2009年5月14日发射,并于2009年8月12日至2013年10月23日期间连续扫描微波和亚毫米天空。2015年2月,欧空局和普朗克合作组织发布了基于整个普朗克任务数据的第二套宇宙学产品,包括温度和偏振,以及一系列科学和技术论文和基于网络的解释性补充。本文概述了数据的主要特点和发布的数据产品,以及相关的宇宙学和天体物理学科学成果和论文。科学产品包括宇宙微波背景(CMB)地图、热苏尼亚耶夫-泽尔多维奇效应以及温度和偏振的漫射前景、致密银河系和河外源目录(包括苏尼亚耶夫-泽尔多维奇星系团和银河冷团的单独目录)以及用于评估分析方法性能和不确定性评估的信号和噪声的广泛模拟。的可能性代码用于评估宇宙学模型对普朗克数据的描述,以及CMB透镜的可能性。科学结果包括宇宙学参数从CMB功率谱,引力透镜,和集群计数,以及对通货膨胀,非高斯,原始磁场,暗能量和修改的重力约束。
英文摘要:
The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14~May 2009 and scanned the microwave and submillimetre sky continuously between 12~August 2009 and 23~October 2013. In February~2015, ESA and the Planck Collaboration released the second set of cosmology products based on data from the entire Planck mission, including both temperature and polarization, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper gives an overview of the main characteristics of the data and the data products in the release, as well as the associated cosmological and astrophysical science results and papers. The science products include maps of the cosmic microwave background (CMB), the thermal Sunyaev-Zeldovich effect, and diffuse foregrounds in temperature and polarization, catalogues of compact Galactic and extragalactic sources (including separate catalogues of Sunyaev-Zeldovich clusters and Galactic cold clumps), and extensive simulations of signals and noise used in assessing the performance of the analysis methods and assessment of uncertainties. The likelihood code used to assess cosmological models against the Planck data are described, as well as a CMB lensing likelihood. Scientific results include cosmological parameters deriving from CMB power spectra, gravitational lensing, and cluster counts, as well as constraints on inflation, non-Gaussianity, primordial magnetic fields, dark energy, and modified gravity.
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