The Massive and Distant Clusters of WISE Survey. V. Extended Radio Sources in Massive Galaxy Clusters at z ∼ 1
The Massive and Distant Clusters of WISE Survey. V. Extended Radio Sources in Massive Galaxy Clusters at z ∼ 1
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DOI：
10.3847/1538-4357/aaf569
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发表时间：
2018-12
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影响因子：
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通讯作者：
E. Moravec;Anthony H. Gonzalez;D. Stern;M. Brodwin;T. Clarke;B. Decker;P. Eisenhardt;W. Mo;C. O’Donnell;A. Pope;S. Stanford;D. Wylezalek
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作者：
E. Moravec;Anthony H. Gonzalez;D. Stern;M. Brodwin;T. Clarke;B. Decker;P. Eisenhardt;W. Mo;C. O’Donnell;A. Pope;S. Stanford;D. Wylezalek
我们介绍了与卡尔·G·詹斯基甚大阵列一起进行的一项初步研究的结果，该研究确定了在z∼1的10个大质量星系团中扩展射电源的射电形态及其宿主星系的性质，在这个时代，星系团正在迅速聚集。这些星系团是从精选星系团的父样本中提取的，这些星系团与20厘米处射电天空的VLA微弱图像相互关联，以识别星系团中心1‘范围内的扩展射电源。在10个靶向来源中，6个是FR II来源，1个是FR I来源，3个具有未确定的形态。八个射电源有相关的斯皮策数据，其中75%提供了红外对应数据。这些对应物中的大多数与大质量星系是一致的。火焰源的角度范围与星团中心半径有很强的相关性，这需要用更大的样本来进一步研究。
We present the results from a pilot study with the Karl G. Jansky Very Large Array to determine the radio morphologies of extended radio sources and the properties of their host-galaxies in 10 massive galaxy clusters at z ∼ 1, an epoch in which clusters are assembling rapidly. These clusters are drawn from a parent sample of WISE-selected galaxy clusters that were cross-correlated with the VLA Faint Images of the Radio Sky at Twenty-Centimeters survey to identify extended radio sources within 1′ of the cluster centers. Out of the 10 targeted sources, 6 are FR II sources, 1 is an FR I source, and 3 have undetermined morphologies. Eight radio sources have associated Spitzer data, 75% presenting infrared counterparts. A majority of these counterparts are consistent with being massive galaxies. The angular extent of the FR sources exhibits a strong correlation with the cluster-centric radius, which warrants further investigation with a larger sample.