U.S.-Czech Astronomical Research on Morphologies of Eclipsing and Non-eclipsing Algols

美国-捷克关于食和非食大陵五形态的天文学研究

• 批准号: 9512791
• 负责人: Mercedes Richards
• 金额: $ 4.73万
• 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: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9512791&HistoricalAwards=false
• 关键词: U.S.; Czech; Astronomical; Research; Morphologies

INT 9512791 Richards This U.S.-Czech research project between Dr. Mercedes Richards of the University of Virginia and Dr. Pavel Koubsky of the Astronomical Institute of the Czech Academy of Sciences will focus on testing the utility of a proposed model for binary Be stars (B-type stars with emission lines). If they are successful, results should contribute to a unifying picture of two classes of Be stars, eclipsing Algols (typically viewed edge-on, in the orbital plane) and non-eclipsing Algols. In this effort, the researchers will undertake extensive optical and ultraviolet spectroscopic studies of classical Algols to interpret the spectra of non-eclipsing Algol candidates. They expect to prove that the present apparent paucity of non-eclipsing Algols is a selection effect. Overall, these findings should increase our understanding of the three-dimensional structure of circumstellar matter in these interacting binaries, above and beneath the orbital plane. This project in stellar astronomy fulfills the program objective of advancing basic scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool research resources in areas of mutual interest and competence. ??

弗吉尼亚大学的梅塞德斯·理查兹博士和捷克科学院天文研究所的帕维尔·库布斯基博士共同开展的这个美国-捷克研究项目，将重点测试一个被提议的双星Be（有发射线的b型恒星）模型的实用性。如果他们成功了，结果将有助于形成两类Be星的统一图像，即食藻脂星（通常在轨道平面上的侧面观察）和非食藻脂星。在这项工作中，研究人员将对经典褐藻进行广泛的光学和紫外光谱研究，以解释非食褐藻候选恒星的光谱。他们希望证明，目前非掩星藻的明显缺乏是一种选择效应。总的来说，这些发现应该增加我们对这些相互作用的双星中，轨道平面上下的星周物质的三维结构的理解。这个恒星天文学项目通过使美国和东欧的顶尖专家在共同感兴趣和能力的领域结合互补的人才和集中研究资源，实现了推进基础科学知识的计划目标。?？