CAREER: The Dynamical Evolution of Galaxies and Galaxy Clusters

米霍斯（Mihos）近年来，观测设备的发展使有关星系和星系团从遥远的过去（高红移）到现在的演化的信息激增。 这种演化表现在星系团成员形态的变化、高红移的蓝色恒星爆发星系比例的增加、星系团内部结构和X射线气体的证据。 将开展一项研究项目，将星系演化的动力学模拟与星系团的观测研究相结合，详细研究这些演化过程，并将利用数值模拟探索SO型星系在星系团中形成的过程。 不同的动力学场景将被探索，包括星系合并，在集群环境中的相互作用，和集群冲压压力剥离对星系的影响。此外，还将发展数值模拟技术，研究星系中星暴风的开始和演化，以及随后宿主星系的演化和椭圆星系周围和整个星系团的热X射线晕的形成。将获得室女座星系团和其他邻近星系团的极深成像，以研究团内漫射光（ICL）。ICL的物质从星系中剥离，因为它们通过集群的潜力和ICL作为一个化石记录的动力学历史的集群。 室女座星系团的中心区域，7度乘7度，将被映射到ICL的结构与室女座星系群的属性。在教育方面，将利用电子教学技术，把最新的科学成果带进教室。 网络课程的创建将使学生能够根据需要复习课堂讲稿，并促进与课堂材料的更好互动和理解。 星系和星系团演化的动力学模拟将用于多媒体计算机演示，以比简单的基于文本的讲座更吸引人的方式为学生提供材料。 将开设天体动力学实验室课程，重点是在当地计算机平台上应用数值模拟技术。 将通过使用凯斯西储大学的机器人望远镜促进学生参与观测实验室。 本科生研究助理将在计算和观测研究计划的所有阶段工作。 学生将有现代天体物理学和科学方法的实践经验。

AbstractAST 98-76143MihosRecent advances in observational facilities have lead to an explosion of information on the evolution of galaxies and galaxy clusters in the distant past (at high redshifts) to the present day. This evolution is manifested through the changing morphology of cluster members, the increasing fraction of blue star-bursting galaxies at high redshift, and evidence of substructure in cluster galaxies and X-ray emitting gas. A research project, which synthesizes dynamical simulations of galaxy evolution with observational studies of galaxy clusters to study these evolutionary processes in detail, will be carried out.Numerical simulations will be used to explore the process by which type SO galaxies form in clusters. Different dynamical scenarios will be explored, including galaxy mergers, interactions within the cluster environment, and the effects of cluster ram-pressure stripping on galaxies. Numerical modeling techniques will also be developed to study the onset and evolution of starburst winds in galaxies, following the subsequent evolution of the host galaxies and the formation of the hot X-ray halos around elliptical galaxies and throughout galaxy clusters.Extremely deep imaging of the Virgo cluster of galaxies and other nearby galaxy clusters will be obtained to study the diffuse intracluster light (ICL). The ICL material is stripped from galaxies as they move through the cluster potential and the ICL acts as a fossil record of the dynamical history of the cluster. The central area, 7 degrees by 7 degrees, of the Virgo cluster will be mapped to correlate the structure of the ICL with the properties of the Virgo galaxy population. The dynamical evolution of galaxy clusters in general will be investigated by studying the ICL across a variety of different environments from small groups to rich clusters of galaxies.On the educational front, electronic lecturing techniques will be used to bring the most up-to-date scientific results into the classroom. The creation of web-based curricula will allow students to review class lectures on demand and foster better interaction with, and comprehension of, class material. The dynamical simulations of galaxy and cluster evolution will be used in multimedia computer presentations to bring material to students in a more engaging manner than simple text based lectures. Laboratory courses in astrodynamics will be developed, centered around numerical simulation techniques applied on local computer platforms. Student participation in observational laboratories will be fostered through the use of Case Western Reserve University's robotic telescope. Undergraduate research assistants will be employed in all phases of the computational and observational research programs. Students will have a hands-on experience in modern astrophysics and the scientific method.