标题： 双模星团A3528中的相互作用 显示英文标题

标题： Interaction in the Bimodal Galaxy Cluster A3528

摘要： X射线和无线电连续谱观测展示了沙普利超星系团中的双峰星团A3528。 从ROSAT PSPC指向观测我们发现星团内部气体在两个亚星团之间的区域有变热的趋势。 这一效应可以被解释为亚星团相互作用的标志。 我们推断A3528中的亚星团中心将在几亿年内相遇。 在使用甚大阵列的20厘米和90厘米连续谱观测中，我们发现了四颗具有无线电发射的星系。 其中一个星系显示出一种头尾结构，表明该星系正在穿过星团内的介质运动。 无线电尾巴显示出热气体的热压与相对论电子的压力之间存在不平衡。 显示英文摘要

摘要： X-ray and radio continuum observations of the bimodal cluster A3528 in the Shapley Supercluster are presented. From a ROSAT PSPC pointed observation we find a marginal tendency of the intracluster gas to be hotter in the region between the two subclusters. This effect can be interpreted as the signature of interaction of the subclusters. We infer that the centres of the subclusters in A3528 will meet within a few 10^8 years. In continuum observations at 20cm and at 90cm with the Very Large Array we find four galaxies having radio emission. One of these galaxies shows a head-tail structure suggesting a motion of the galaxy through the intracluster medium. The radio tail shows an imbalance between the thermal pressure of the intra-cluster gas and the pressure of the relativistic electrons.