RUI: Observations of Binary and Proper-Motion Stars

RUI：双星和自行恒星的观测

• 批准号: 8814956
• 负责人: Wulff Heintz
• 金额: $ 7.6万
• 依托单位: Swarthmore College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-15 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8814956&HistoricalAwards=false
• 关键词: RUI; Observations; Binary; Proper; Motion

The two most common features of stars are red dwarf characteristics and multiple formation. The luminosity function of stars is known to drop off substantially in the range below one-quarter solar mass. In addition, the frequency of binary stars diminishes in this mass bracket. Thus, data on the abundances, luminosities, and masses of these stars are difficult to obtain, and not as plentiful or as accurate as desired. The 61 centimeter refractor telescope at the observatory at Swarthmore College, under the directorship of Dr. Wulff Heintz, is devoted to the study of the distances of dwarf stars and binary stars and the determination of the orbits of binary stars. These data result in more accurate estimates of the luminosities and masses of these stars. In the past Dr. Heintz has relied on traditional instrumentation and techniques for these measurements. With this grant, Dr. Heintz will begin the transition to modern methods and state of the art instruments, which should provide more reliable and more accurate data. This award is made under the auspices of the Research at Undergraduate Institutions program at the National Science Foundation.

恒星最常见的两个特征是红矮星 特色与多元形成。 光度函数 已知恒星的数量在以下范围内大幅下降 太阳质量的四分之一 此外，二进制的频率 恒星在这个质量范围内逐渐减少。 因此， 这些恒星的丰度、光度和质量很难 而不是像所期望的那样丰富或准确。 天文台的61厘米折射望远镜 斯沃斯莫尔学院，在伍尔夫·海因茨博士的领导下， 致力于研究矮星的距离， 双星和双星轨道的测定。 这些数据可以更准确地估算出 以及这些恒星的质量。 在过去，海因茨博士一直依赖于 传统的仪器和技术 测量. 有了这笔资金，海因茨博士将开始 过渡到现代方法和最先进的仪器， 这将提供更可靠和更准确的数据。 这 该奖项是在本科研究的主持下进行的 国家科学基金会的机构计划。