Dynamics of Satellite Galaxies

卫星星系的动力学

• 批准号: 0406844
• 负责人: Tereasa Brainerd
• 金额: $ 12.13万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-01 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0406844&HistoricalAwards=false
• 关键词: Dynamics; Satellite; Galaxies

AST-0406844BrainerdThis project focuses on measuring the velocity dispersions, masses and density profiles of the dark matter halos of galaxies via the dynamics of satellite galaxies, using publicly available redshift surveys. The sample will be selected paying close attention to the effects of interlopers, and the results of the analysis will be used to address a number of issues in galaxy formation, including halo mass versus Hubble type, mass-to-light ratio versus luminosity, radial dependence of kinematics, and alignment preferences. Interpretation will be aided by high-resolution computer simulations, addressing the validity of mass estimators and the impact of interlopers. The research will include undergraduate activities far beyond their usual education experience and with longer-term involvement.

AST-0406844 Brainerd该项目的重点是通过卫星星系的动力学，使用公开的红移测量来测量星系暗物质晕的速度色散、质量和密度分布。 样本的选择将密切关注闯入者的影响，分析结果将用于解决星系形成中的一些问题，包括晕质量与哈勃类型，质光比与光度，运动学的径向依赖性和排列偏好。 解释将得到高分辨率计算机模拟的帮助，解决质量估计的有效性和闯入者的影响。 这项研究将包括远远超出他们通常的教育经验和长期参与的本科活动。