Quantifying the Laws of Star Formation on Galactic Scales

量化银河尺度上恒星形成的规律

• 批准号: 0307482
• 负责人: Dennis Zaritsky
• 金额: $ 22.86万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2008-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0307482&HistoricalAwards=false
• 关键词: Quantifying; Laws; Star; Formation; Galactic

AST-0307482ZaritskyThis research takes advantage of progress on both theoretical and observational fronts to investigate the physics behind the properties of Local Group (LG) galaxies, by comparing simulated star formation histories to their observed counterparts. Large-scale, high-resolution, N-body simulations will be complemented by smaller, detailed gas-dynamical simulations, which can follow the progress of LG-like structures identified in the first step. The results will be compared to the observed kinematic and photometric properties of LG galaxies. This work should address the star formation and chemical enrichment histories of LG galaxies, the origins of different stellar populations, the properties, spatial and orbital distribution, of satellite galaxies in the LG, and the origin and nature of the current LG mass function.The project will make public both the algorithms used and movies of the simulations (which are educationally quite effective). The research will also contribute to more than one doctoral thesis.

AST-0307482 Zaritsky这项研究利用理论和观测方面的进展，通过比较模拟的星星形成历史与观测到的对应物，研究本星系群（LG）星系特性背后的物理学。 大规模，高分辨率，N体模拟将由较小的，详细的气体动力学模拟补充，这可以遵循第一步中确定的LG类结构的进展。 结果将进行比较所观察到的LG星系的运动学和光度特性。 这项工作将涉及LG星系的星星形成和化学富集的历史，不同恒星群体的起源，LG卫星星系的性质，空间和轨道分布，以及当前LG质量函数的起源和性质。该项目将公开使用的算法和模拟的电影（这在教育上是非常有效的）。 该研究还将为多篇博士论文做出贡献。