Spectral Distortion of Cosmic Microwave Background Radiation by Scattering on Hot Electrons: Exact Calculations
Spectral Distortion of Cosmic Microwave Background Radiation by Scattering on Hot Electrons: Exact Calculations
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热电子散射引起的宇宙微波背景辐射的光谱畸变：精确计算
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
D. Semikoz
中科院分区：
文献类型：
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作者：
A. Dolgov;S. Hansen;S. Pastor;D. Semikoz
在任意光学深度和电子温度下，计算了星系团中热电子逆康普顿散射产生的宇宙微波背景辐射的光谱畸变（热Sunyaev-Zeldovich效应）。畸变是由光子分布函数精确玻尔兹曼方程的数值解得到的。在小光学深度和低电子温度的限制下，我们的结果证实了之前的分析。在相反的范围内，我们的方法是唯一允许我们进行精确计算的方法。
The spectral distortion of the cosmic microwave background radiation produced by the inverse Compton scattering on hot electrons in clusters of galaxies (thermal Sunyaev-Zeldovich effect) is calculated for arbitrary optical depth and electron temperature. The distortion is found by a numerical solution of the exact Boltzmann equation for the photon distribution function. In the limit of small optical depth and low electron temperature, our results confirm the previous analyses. In the opposite limits, our method is the only one that permits us to make accurate calculations.