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-0406844Brainerdthis项目致力于使用公开可用的红移调查，通过卫星星系的动力学来测量星系暗卤素的速度分散，质量和密度曲线。 将选择样本，密切注意闯入者的影响，分析的结果将用于解决星系形成中的许多问题，包括光晕质量与哈勃类型，质量与轻度比率与亮度，运动学的径向依赖性，运动学偏好和比对偏好。 高分辨率的计算机模拟将有助于解释，以解决质量估计器的有效性和闯入者的影响。 该研究将包括本科活动远远超出了他们通常的教育经验和长期参与。