Multiwavelength Studies and Numerical Modelling of Radio Galaxies and Galaxy Clusters

射电星系和星系团的多波长研究和数值模拟

• 批准号: 9317596
• 负责人: Jack Burns
• 金额: $ 20.41万
• 依托单位: New Mexico State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317596&HistoricalAwards=false
• 关键词: Multiwavelength; Studies; Numerical; Modelling; Radio

9317596 Burns New X-ray, optical, and now radio observations have demonstrated that clusters of galaxies are not simple related structures as once envisioned, but rather dynamically evolving systems that have undergone dramatic cluster/subcluster merging. This research will support a multiwavelength observational study of clusters and cluster merging coupled with sophisticated hydrodynamical and N-body numerical modelling, centered around radio galaxies in clusters. It will investigate how mergers influence the creation and evolution of wide-angle tailed radio sources, cluster radio halos, and steep-spectrum radio galaxies. Numerical hydro/N-body simulations will be used to explore the evolution of the gravitational potential well and the gas in clusters during merging. Magnetohydrodynamic simulations will be used to model the cluster gaseous environment including nonspherical cooling inflows and thermal instabilities, and the propagation of radio jets through cluster atmospheres.

9317596燃烧了新的X射线，光学和现在的无线电观察结果表明，星系簇不是曾经令人羡慕的简单相关结构，而是动态发展的系统，这些系统经历了引人注目的群集/亚集群合并。 这项研究将支持集群和集群合并的多波长度观察性研究，并与复杂的流体动力学和N体数值建模相结合，集中在群集中的射电星系围绕。 它将调查合并如何影响广角尾部无线电来源，群集无线电光环和陡峭的射线射线星系的创造和演变。 数值水电/N体模拟将用于探索在合并过程中重力势孔和簇中气体的演变。 磁性水力动力学模拟将用于模拟群集气体环境，包括非球形冷却流入和热不稳定性，以及通过簇大气的无线电飞机传播。