Mass Transfer and Magnetic Activity in Eclipsing and Non- Eclipsing Algol Binaries

食和非食大陵五双星中的质量传递和磁活动

• 批准号: 9618461
• 负责人: Mercedes Richards
• 金额: $ 10.5万
• 依托单位: University of Virginia Main Campus
• 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 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9618461&HistoricalAwards=false
• 关键词: Mass; Transfer; Magnetic; Activity; Eclipsing

Richards, Mercedes AST 96-18461 Dr. Richards will continue her studies of mass transfer in close interacting binary systems. She will analyze a large amount of observational data on Algol binaries at a variety of wavelengths, including spectroscopy in the ultraviolet, visible, and radio, and photometry in the infrared, often in simultaneous observation campaigns. A variety of techniques are used to investigate the mass transfer in these systems including study of the orbital variation of line strengths, analysis of the radial velocity variation of the emission in difference profiles, and Doppler tomography to produce reconstructed images of the binary. The PI will also continue studies of Algol systems through two- and three- dimensional hydrodynamic simulations to aid in the interpretation of the Doppler tomography maps. The ultimate goal of the research is to determine the range of mass transfer rates in Algols, and, in selected magnetically active systems, to study how magnetic fields influence the mass transfer process and evolution of the binary. ***

Richards，Mercedes AST 96-18461理查兹博士将继续她在紧密相互作用的二元系统中的传质研究。她将分析关于土卫六双星的各种波长的大量观测数据，包括紫外线、可见光和无线电的光谱，以及红外的光度学，通常是在同时进行的观测活动中。各种技术被用来研究这些系统中的质量传递，包括研究谱线强度的轨道变化，分析不同剖面中发射的径向速度变化，以及用多普勒层析成像产生双星的重建图像。PI还将通过二维和三维流体动力学模拟继续研究ALGOL系统，以帮助解释多普勒层析成像图。这项研究的最终目标是确定ALGOL中传质速率的范围，并在选定的磁活动系统中，研究磁场如何影响双星的传质过程和演化。***