Numerical Simulations and Observations of Radio Galaxies

这是一个研究项目的延续， 银河系外射电源的模拟和观测。 的 本研究的主题是研究前， 在周围的介质中产生无线电等离子体。 从数字上讲， 磁流体动力学代码ZEUS的能力将大大扩展 to operate操作in three三dimensions维. 此代码将用于研究 无线电喷流在二维和三维空间中的传播， 各种各样的星系和星团大气层。 特别是 高超音速喷流约束的流体力学机理 将被研究。 冷却流团中射流的破裂 也将进行分析，以及弯曲和中断 与尾射电源有关的射电源喷流。 观察- ly，新的VLA图像的中叶和内叶区域的Cen- 金牛座A在8和0.3 GHz和特殊的经典双 0816+526将被制造。 调查工作将包括调查 的性质的cD星系在丰富的集群，观测 选择的x射线星团和丰富的南部星团， 一个明亮的3CR射电星系样本的动态范围映射。

This is a continuation of a research program involving numerical simulations and observations of extragalactic radio sources. The theme of this research is to study the interaction between ex- tended radio plasma the surrounding medium. Numerically, the capabilities of the MHD code ZEUS will be significantly extended to operate in three dimensions. This code will be used to study the propagation of radio jets in both two and three dimensions in a variety of galaxy and cluster atmospheres. In particular, a hydrodynamical mechanism for the confinement of hypersonic jets will be studied. The disruption of jets in cooling flow clusters will also be analyzed, as well as the bending and disruption of radio jets associated with tailed radio sources. Observational- ly, new VLA images of the middle and inner lobe regions of Cen- taurus A at 8 and 0.3 GHz and of the peculiar classical double 0816+526 will be made. Survey work will include an investigation of the properties of cD galaxies in rich clusters, observations of selected x-ray clusters and rich southern clusters, and high dynamic range mapping of a sample of luminous 3CR radio galaxies.