CAREER: A Survey for High Redshift Galaxy Clusters: A Research and Education Resource

9733111扎里茨基，现存最大的高红移样本(0.4.Z。1.1)将汇编和分析星系团，为解决宇宙学、大尺度结构、星系团演化和星系演化等问题提供信息。星系团的数密度、光度函数、丰度分布和结构性质是宇宙学模型中很好的判别器，特别是在高红移时，许多标准模型预测星系团的快速演化。将被汇编的数百个星系团的样本也将提供高红移星系团关联函数的最佳可用测量，并可能勾勒出星系局部“长城”的遥远类似物。从分析数千个遥远的星系团星系的星等和颜色以及数百个星系的光谱中获得的信息将限制星系演化的红移模型，而目前红移的限制很少。这些信息还将有助于限制星系团星系的形成时代。高z最亮星系团(BCG)大样本的识别，以及这些星系团的观测数据，将使我们能够研究BCG的演化以及BCG与星系团环境之间的联系。一种针对高z星系团的新搜索技术将能够从数百个星系团的独特样本中汇编数据，并使用数据分析的结果来解决这些问题。光谱和光度观测的最新结果证明了这项技术的成功。教育工作分为四个领域：(1)通过利用当前技术和研究成绩数据的课程开发来加强对本科生的教育；(2)建立一个与网络有关的教学材料的中央信息交换所，宣传那些试图将互联网发展成有效的天文学教学工具的人所做的努力；(3)研究生辅导；以及(4)公众宣传。公众宣传活动将通过公开讲座面向成年人，并通过ASTRO项目继续与当地一名教师建立为期两年的伙伴关系，面向小学生。第一个项目将是创建和实施基于互联网的实验室项目，允许本科生直接操作从许多来源获得的研究质量数据，包括对星系团的调查。有几个实验室项目已经编写并在网上提供，并已在课程中使用。第二个项目是在互联网上建立和维护一个中心位置，教师可以在那里分享他们开发的材料。将组织一个非正式的讨论小组来指导研究生。此外，还将参加利克天文台的暑期公众访客讲座和太平洋天文学会4-9年级的ASTRO项目。***

9733111 ZARITSKY The largest existing sample of high redshift (0.4 . z . 1.1) galaxy clusters will be compiled and analyzed to provide information to address issues in cosmology, large-scale structure, cluster evolution, and galaxy evolution. The number density, luminosity function, richness distribution, and structural properties of clusters are excellent discriminators among cosmological models, particularly so at high redshifts where many of the standard models predict rapid evolution of galaxy clusters. The sample of hundreds of clusters that will be compiled will also provide the best available measure of the high-redshift cluster correlation function and possibly outline distant analogs of the local "Great Wall" of galaxies. The information gained from analyzing the magnitudes and colors of thousands, and spectra of hundreds, of distant cluster galaxies will constrain models of galaxy evolution at a redshift where there are currently very few constraints. The information will also help to place limits on the formation epoch of cluster galaxies. The identification of a large sample of high-z brightest cluster galaxies (BCGs), and the data from observations of these clusters, will allow us to study BCG evolution and the connection between BCGs and the cluster environment. A novel search technique for high-z clusters will enable the compilation of data from a unique sample of hundreds of clusters and use the results of the analysis of the data to address these issues. Recent results from spectroscopic and photometric observations have demonstrated the success of the technique. The educational efforts are divided into four areas: (1) enhancing the education of undergraduates through course development that utilizes current technology and research-grade data, (2) establishing a central clearinghouse for web-related instructional materials that publicizes the efforts of those who are attempting to develop the Internet into an effective teaching tool for astronomy, (3) gradua te student mentoring, and (4) public outreach. The public outreach will be both to adults through public lectures and to elementary school children through the continuation of a two-year partnership with a local teacher through Project ASTRO. The first project will be the creation and implementation of Internet-based laboratory projects that allow undergraduate students to directly manipulate research-quality data drawn from many sources, including the survey of clusters of galaxies. There are several laboratory projects already written and available on the Web and which have been used in courses. The second project is to establish and maintain a central location on the Internet where instructors can share material they develop. There will be an informal discussion group organized for mentoring of graduate students. There will also be involvement in the summer public visitor lectures at Lick Observatory and in the Astronomical Society of the Pacific's Project ASTRO for grades 4-9. ***