Comptonization of the Cosmic Microwave Background: The Sunyaev-Zeldovich Effect
Comptonization of the Cosmic Microwave Background: The Sunyaev-Zeldovich Effect
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宇宙微波背景的量子化：Sunyaev-Zeldovich 效应
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Y. Rephaeli
中科院分区：
文献类型：
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作者：
Y. Rephaeli
本文综述了星系团中高温气体对微波背景辐射（CMB）复合的理论和观测工作（Sunyaev-Zeldovic效应）。这种重要的宇宙探测器的使用是基于对该效应的近似非相对论性处理。一个精确的相对计算，详细描述，是特别重要的正确确定哈勃常数和星系团的特殊速度。一些研究已经开展了由团簇引起的CMB各向异性；在大多数情况下，预计这将在几角分的尺度上构成总体各向异性的一个可观组成部分。回顾了在十几个群集中发现的具有统计意义的影响；除了传统的单碟无线电测量外，现在还包括使用Ryle和OVRO阵列进行干涉测量，以及使用SUZIE实验进行高频测量。结合这些和x射线测量得出哈勃常数的平均值（未加权）为58±6 km s- I Mpc I。
We review theoretical and observational work on Comptonization of the cos mic microwave background (CMB) radiation by hot gas in clusters of galaxies (the Sunyaev-Zeldovic h effect). Uses of this important cosmological probe have been based on an approximate nonrelativistic treatment of the effect. An exact rel ativistic calculation, which is described in detail, is particularly important for the correct determinations of the Hubble constant and peculiar velocities of clusters. A number of studies of CMB anisotropy induced by clusters have been carried out; by most accounts this is predicted to constitute an appreciable component of the overall anisotropy on scales of a few arcminutes. Statistically significant detections of the effect in more than a dozen clusters are reviewed; in addition to the traditional single-dish radio measurements, these now include interfer ometric observations with the Ryle and OVRO arrays and the high-frequency measurements with the SUZIE experiment. The combination of these and X-ray measurements yield a mean (unweighted) value of 58 ± 6 km s- I Mpc I for the Hubble constant.