THE EXTENDED RADIO EMISSION IN THE LUMINOUS X-RAY CLUSTER A3667
THE EXTENDED RADIO EMISSION IN THE LUMINOUS X-RAY CLUSTER A3667
复制标题
发光 X 射线簇 A3667 中的扩展无线电发射
DOI：
10.1093/mnras/290.4.577
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发表时间：
1997
影响因子：
4.8
通讯作者：
R. Ekers
中科院分区：
文献类型：
--
作者：
H. Röttgering;M. Wieringa;R. Hunstead;R. Ekers
在星系团A3667的射电源已经使用澳大利亚望远镜紧凑阵列在13和20厘米成像。最引人注目的来源是一个大面积的区域（范围至少为2.6 Mpc），主要是位于西北部的扩散发射，远离星团的中央核心。考虑到X射线和光学数据，我们认为，在集群的外部区域的湍流，与集群合并，重新加速残余相对论粒子，导致观察到的大区域的无线电发射。新的MOST数据表明类似的扩散发射到东南支持这一结论。1在本文中，我们选择不画晕和遗迹源之间的区别，但使用术语“晕”一般指的是任何一类的扩散集群源。
The radio sources in the galaxy cluster A3667 have been imaged using the Australia Telescope Compact Array at both 13 and 20 cm. The most striking source is a large region (at least 2.6 Mpc in extent) of mostly diffuse emission that is located to the north-west, well outside the central core of the cluster. Taking into account the X-ray and optical data, we suggest that turbulence in the outer region of the cluster, associated with a cluster merger, reaccelerates remnant relativistic particles, leading to the observed large region of radio emission. New MOST data which indicate similar diffuse emission to the south-east support this conclusion.1In this paper we choose not to draw a distinction between halo and relic sources, but use the term ‘halo’ to refer generically to either class of diffuse cluster source.