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Radio Sources of Random Sky Region
Astrophysical Bulletin ( IF 1.3 ) Pub Date : 2019-08-14 , DOI: 10.1134/s1990341319030015
A. A. Zaporozhetz , O. V. Verkhodanov

The paper presents the statistical data analysis of radio astronomic surveys in the sky region of a size of 177▭°at high galactic latitudes. We divided the region into four sectors equal in area and analyzed the observed properties of radio sources and the cosmic microwave background in each sector. The distribution of physical parameters (flux density, radio spectrum type, spectral index of radio sources) as well as the properties of the cosmic microwave background within the region of a size of 177▭° are shown to correspond to the cosmological principle, while the number of radio sources and their morphological types significantly differ in various areas. This points that studying sky regions of a given size, when analyzing the cosmic microwave background, can yield a statistically correct picture at high multipoles (corresponding to the size of a region), while generalization of the object calculations over the whole sky and their evolutionary morphological characteristics over the total population of sources is not obvious. We detected a positive shift in the response distribution in the direction to the radio sources on the cosmic microwave background map at the 2σ level repeated in all four sectors. According to the analysis of the multi-frequency Planck maps, a catalog has been compiled containing 120 new for galaxy cluster candidates with the Sunyaev—Zeldovich effect, 46 of which may be distant (z > 0.7).

中文翻译:

随机天空区域的无线电源

本文介绍了在高银河纬度大小为177▭°的天空区域进行射电天文测量的统计数据分析。我们将区域分为面积相等的四个扇区,并分析了每个扇区中观测到的无线电源特性和宇宙微波背景。物理参数(通量密度,无线电频谱类型,无线电源的频谱指数)的分布以及宇宙微波背景在177°°区域内的性质均显示出符合宇宙学原理,而各个地区的无线电源数量及其形态类型均存在显着差异。这表明在分析宇宙微波背景时,应研究给定大小的天空区域,可以在高多极点(对应于区域的大小)上产生统计上正确的图像,而在整个天空上对对象计算的概括及其在整个源总数中的演化形态特征并不明显。我们在宇宙微波背景图上以所有两个扇区重复的2σ电平检测到响应方向朝着无线电源方向的正向偏移。根据对多频普朗克图的分析,已编制了一个目录,其中包含120个新的具有Sunyaev-Zeldovich效应的星系团候选,其中46个可能遥远(我们在宇宙微波背景图上以所有两个扇区重复的2σ电平检测到响应方向朝着无线电源方向的正向偏移。根据对多频普朗克图的分析,已编制了一个目录,其中包含120个新的具有Sunyaev-Zeldovich效应的星系团候选,其中46个可能遥远(我们在宇宙微波背景图上以所有两个扇区重复的2σ电平检测到响应方向朝着无线电源方向的正向偏移。根据对多频普朗克图的分析,已经编制了一个目录,其中包含120个新的具有Sunyaev-Zeldovich效应的星系团候选,其中46个可能遥远(z > 0.7)。
更新日期:2019-08-14
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