Models of Activity Cycles of Chromospherically-Active Binary Stars

色球活跃双星的活动周期模型

• 批准号: 8903174
• 负责人: Michael Zeilik
• 金额: $ 10.2万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1993-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8903174&HistoricalAwards=false
• 关键词: Models; Activity; Cycles; Chromospherically; Active

It is now believed that many stars with surface temperatures like the sun's and less have magnetic activity cycles similar to the 11-year cycle of the sun. One group of such stars are the so-called RS CVn stars, whose active regions are thought to be associated with cool, circular starspot regions. The Principal Investigator (PI) proposes to use archival and newly obtained photometric data for the investigation of eclipsing RS CVn stars. The goal is to determine whether the long-term trends in sizes and locations of the active regions of these stars will reveal magnetic activity cycles similar to the solar cycle. In addition, the PI proposes to determine the temperature of the stars' spotted regions relative to their photospheres.

现在人们相信许多恒星的表面温度 和太阳的磁场活动周期相似 太阳的11年周期 其中一组恒星是 所谓的RS CVn星，其活跃区域被认为是 与凉爽的圆形星点区域有关。 的 主要研究者（PI）建议使用存档和新的 获得了研究食RS的光度数据 CVn星。目标是确定长期 这些活动区域的大小和位置的趋势 恒星会显示出类似于太阳的磁活动周期 周期 此外，PI建议确定 恒星的斑点区域的温度相对于它们的 光球