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Search for Candidate Objects with the Sunyaev–Zeldovich Effect on Planck Maps in the Neighborhood of RCR Catalog Radio Sources
Astrophysical Bulletin ( IF 1.3 ) Pub Date : 2020-07-27 , DOI: 10.1134/s1990341320020091
E. K. Majorova , O. V. Verkhodanov , O. P. Zhelenkova

Abstract

Millimeter- and submillimeter-wave maps are used to select potential candidate objects with the Sunyaev–Zeldovich effect in the vicinity of RCR (RATAN Cold Refined) radio sources. The properties of “hot” and “cold” spots in the right-ascension interval 2h ≤ RA ≤ 17h and the declination strip \({\text{De}}{{{\text{c}}}_{{2000}}} = 45^\circ .9' \pm 15'\) are studied. In the entire strip a total of 135 candidate objects with the Sunyaev–Zeldovich effect are found. A total of 86 objects are located within 7′ from RCR catalog sources. The effect shows up most conspicuously in the vicinity of 25 RCR sources. Clusters of galaxies or radio sources are found near the overwhelming majority of spots with the Sunyaev–Zeldovich effect. The distributions of radio spectral indices of the objects and the signal on microwave maps in the direction of radio sources are statistically analyzed. It is shown that when observed at microwave frequencies a number of objects are associated with sources with inverted spectra.


中文翻译:

在RCR目录无线电源附近的普朗克地图上搜索具有Sunyaev–Zeldovich效应的候选对象

摘要

毫米波和亚毫米波图用于选择RCR(RATAN冷精制)无线电源附近具有Sunyaev–Zeldovich效应的潜在候选物体。的“热”和“冷”在右提升点的属性间隔2 ħ ≤RA≤17 ħ和偏角条\({\文本{德}} {{{\文本{C}}} _ {{ 2000}}} = 45 ^ \ circ .9'\ pm 15'\)被研究。在整个条带中,总共发现了135个具有Sunyaev–Zeldovich效应的候选对象。距离RCR目录源7'内共有86个对象。在25个RCR源附近,效果最为明显。在绝大多数点附近都发现了星系团或无线电源,它们具有Sunyaev–Zeldovich效应。统计分析对象的无线电频谱指数和微波地图上信号在无线电源方向上的分布。结果表明,在微波频率下观察时,许多物体与具有倒频谱的光源相关联。
更新日期:2020-07-27
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