A non cool-core 4.6-keV cluster around the bright nearby radio galaxy PKS B1416-493

A non cool-core 4.6-keV cluster around the bright nearby radio galaxy PKS B1416-493
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邻近明亮射电星系 PKS B1416-493 周围的非冷核 4.6 keV 星团

DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
M. Birkinshaw
M. Birkinshaw
中科院分区:
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文献类型:
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作者:
D. Worrall;M. Birkinshaw

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我们提出了新的X射线(钱德拉)和无线电(ATCA)观测z=0.09射电星系PKS B1416-493,相当于南部的3CRR样本的成员。我们发现源嵌入在一个以前未被识别的明亮kT=4.6千电子伏非冷核心集群。在z=0.1的范围内发现如此高温度和亮度的新星系团是罕见的。根据其中间FRI/II形态选择射电源进行观测。我们确定了一个与东北瓣一致的腔,以及与西南瓣相关的过量计数,我们将其解释为逆康普顿X射线发射。喷流功率为5.3 x 10^44 erg/s,当用射电源密度加权时,支持了中等形态和射电源的射电源可能主导局部宇宙中的射电星系加热的建议。
We present new X-ray (Chandra) and radio (ATCA) observations of the z=0.09 radio galaxy PKS B1416-493, a member of the southern equivalent of the 3CRR sample. We find the source to be embedded in a previously unrecognized bright kT=4.6 keV non cool-core cluster. The discovery of new clusters of such high temperature and luminosity within z=0.1 is rare. The radio source was chosen for observation based on its intermediate FRI/II morphology. We identify a cavity coincident with the northeast lobe, and excess counts associated with the southwest lobe that we interpret as inverse Compton X-ray emission. The jet power, at 5.3 x 10^44 erg/s, when weighted by radio source density, supports suggestions that radio sources of intermediate morphology and radio power may dominate radio-galaxy heating in the local Universe.
射电星系中的星系气体喷射:3C 35 的案例
DOI: 10.1093/mnras/stt215
发表时间: 2013
影响因子: 4.8
作者:
Mannering E
通讯作者: Mannering E
活动星系的 X 射线喷流
DOI: 10.1007/s00159-008-0016-7
发表时间: 2009
期刊: The Astronomy and Astrophysics Review
影响因子: --
作者:
Worrall D
通讯作者: Worrall D