X-Ray and Radio Interactions in the Cores of Cooling Flow Clusters
X-Ray and Radio Interactions in the Cores of Cooling Flow Clusters
复制标题
冷却流团簇核心的 X 射线和无线电相互作用
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
F. Owen
中科院分区：
文献类型：
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作者：
E. Rizza;E. Rizza;C. Loken;M. Bliton;M. Bliton;K. Roettiger;Jack O. Burns;F. Owen
我们提出了高分辨率ROSAT X射线和无线电观测的三个冷却流集群包含在其核心的陡谱射电源。所有这三个系统都表现出强烈的迹象，无线电等离子体和热的团内介质之间的相互作用。两个星团A133和A2626显示出与射电源空间一致的增强的X射线发射，而第三个星团A2052则显示出大部分射电源周围的大面积X射线过量。使用三维数值模拟，我们表明，通过冷却流大气传播的扰动射流可以引起无定形的无线电形态，特别是在射流被“关闭”，并允许被动老化的情况下。此外，模拟的X射线表面亮度产生的过剩和赤字观察。
We present high-resolution ROSAT X-ray and radio observations of three cooling flow clusters containing steep-spectrum radio sources at their cores. All three systems exhibit strong signs of interaction between the radio plasma and the hot intracluster medium. Two clusters, A133 and A2626, show enhanced X-ray emission spatially coincident with the radio source, whereas the third cluster, A2052, exhibits a large region of X-ray excess surrounding much of the radio source. Using three-dimensional numerical simulations, we show that a perturbed jet propagating through a cooling flow atmosphere can give rise to amorphous radio morphologies, particularly in the case where the jet was "turned off" and allowed to age passively. In addition, the simulated X-ray surface brightness produced both excesses and deficits as seen observationally.