"CAREER: Astrophysics, Computers, and Education"

“职业：天体物理学、计算机和教育”

• 批准号: 9702908
• 负责人: John Blondin
• 金额: $ 23.56万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-15 至 2003-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9702908&HistoricalAwards=false
• 关键词: CAREER; Astrophysics; Computers; Education

AST-9702908 Abstract - J. Blondin Computers have made an important impact on both astrophysics research and education over the last several years. Numerical simulations on modern supercomputers have made great strides in our ability to do research in virtually every subfield of astrophysics, from computing chaotic planetary orbits to the models of the formation of large-scale structure in the Universe. At the same time, computers have become an ever-growing presence in our nation's classrooms. Now, with the increasing popularity of the World Wide Web, those computers are opening up the classroom to the world. This is a project to exploit this natural link between computational astrophysics and computer- based education. The educational aspect of this project will draw on a variety of different avenues, including the development of a new, computer- based astronomy lab at NCSU for non-science undergraduates, the creation of web sites intended to convey the excitement of current astrophysics research to the general public by drawing on the visually striking results of numerical simulations, the teaching on numerical methods in upper-level physics courses, and the involvement of undergraduates in computational astrophysics research. The research aspect of this project will focus on the hydrodynamics of mass and angular momentum transfer in X-ray binary stars. However, this work will have far reaching impact, for the phenomenon of mass transfer is an important process in a wide range of binary star systems. By studying X-ray pulsars, where one has a quantitative measure of both the mass and angular momentum accretion rate, one can learn about the physics of Roche lobe overflow, tidal stream impact, accretion disk formation, disk winds, and much more. Furthermore, the current wealth of observational data from satellites such as ASCA, BATSE, and XTE will greatly accelerate the progress in this fi eld over the next few years, and the numerical models generated in the proposed research will provide an important key to interpreting this new data.

AST-9702908 摘要 - J. Blondin 计算机在过去几年中对天体物理学研究和教育产生了重要影响。现代超级计算机上的数值模拟使我们在天体物理学几乎每个子领域的研究能力方面取得了巨大进步，从计算混沌行星轨道到宇宙中大规模结构形成的模型。 与此同时，计算机在我们国家的课堂中的应用日益广泛。现在，随着万维网的日益普及，这些计算机正在向世界开放课堂。 这是一个利用计算天体物理学和基于计算机的教育之间的自然联系的项目。 该项目的教育方面将利用各种不同的途径，包括在北卡罗来纳州立大学为非理科本科生开发一个新的基于计算机的天文学实验室，创建旨在向人们传达当前天体物理学研究的兴奋点的网站。通过利用数值模拟的视觉上引人注目的结果、高级物理课程中数值方法的教学以及本科生参与计算天体物理学研究来向公众展示。 该项目的研究重点是X射线双星中质量和角动量传递的流体动力学。然而，这项工作将产生深远的影响，因为质量传递现象是广泛的双星系统中的一个重要过程。通过研究 X 射线脉冲星，可以定量测量质量和角动量吸积率，人们可以了解罗希瓣溢出、潮汐流撞击、吸积盘形成、吸积盘风等物理原理。此外，目前来自 ASCA、BATSE 和 XTE 等卫星的丰富观测数据将在未来几年大大加速该领域的进展，而拟议研究中生成的数值模型将为解释这一领域提供重要的关键。新数据。