The Star-Stream Interaction in Short-Period Algol-Type Binaries

短周期大陵五型双星中的星流相互作用

• 批准号: 9114214
• 负责人: Mercedes Richards
• 金额: $ 8万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-15 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9114214&HistoricalAwards=false
• 关键词: Star; Stream; Interaction; Short; Period

The Principal Investigator intends to do research on the class of short-period Algol-type binaries to study the effects of the impact of a gas stream from the companion star onto the surface of the accreting star. This process is known as the star-stream interaction. This study will encompass both observational and theoretical work. In the first case, the properties of the circumstellar material which results from the star-stream interaction will be obtained from an analysis of observations of the H alpha line profile of several binaries. While in the latter case, extensive numerical hydrodynamical calculations will be make to determine the expected character of the impact region and any other circumstellar material which might result from the impact. The National Observatories and National Supercomputing Centers will be used for this research. This work is important because it will show how the evolution of a star is influenced by its membership in a close interacting binary, like the short-period Algol-type binaries.//

主要研究者打算对以下类别进行研究 短周期大陵五型双星，研究撞击的影响 从伴星星星喷射到 吸积星星。 这个过程被称为星流 互动 这项研究将包括观察和 理论工作。 在第一种情况下， 来自恒星流的拱星物质 相互作用将通过对以下观测结果的分析获得： 几个双星的H α线轮廓。 而在后一 在这种情况下，将进行广泛的数值流体动力学计算 以确定撞击区域的预期特征， 其他可能由撞击产生的星周物质 国家天文台和国家超级计算中心将 用于这项研究。 这项工作很重要，因为它将 说明了星星的演化是如何受到其成员的影响的 在一个紧密相互作用的双星中，比如短周期的大陵五型 binaries.