Analysis of Results from Volumes 1 - 4 of the Michigan Spectral Catalogue

密歇根光谱目录第 1 - 4 卷结果分析

• 批准号: 8913683
• 负责人: Nancy Houk
• 金额: $ 42.51万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 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: 1989-11-15 至 1995-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8913683&HistoricalAwards=false
• 关键词: Analysis; Results; Volumes; Michigan; Spectral

The classification of stars according to their optical spectra is an important and time honored part of astronomical research. The spectra give information about the stars' temperatures, compositions, evolutionary stages, absolute brightnesses, and distances. Much of what we know about stellar evolution and Galactic dynamics is based on the information contained in spectral catalogues of stars. The Principal Investigator (PI) proposes to continue with her work, currently funded by NSF, on the two-dimensional classification of stars from Harvard's Henry Draper (HD) Catalogue. To date, 130,000 stars have been classified and their spectral types published under the title Michigan Spectral Catalogue. In the current proposal, the PI intends to classify stars for Volume 5 of the catalogue, all of which lie in the Southern Hemisphere; and to start the classification of stars for Volume 6. Undergraduate and graduate students will participate, though the crucial task of classifying the stars according to their spectra will be done exclusively by the PI in order to maintain uniformity.

根据恒星的光谱对恒星进行分类是天文学研究中一个重要且由来已久的部分。光谱提供了有关恒星的温度、组成、演化阶段、绝对亮度和距离的信息。我们所知道的关于恒星演化和银河系动力学的许多知识都是基于恒星光谱目录中包含的信息。首席研究员(PI)计划继续她目前由美国国家科学基金会资助的工作，对哈佛大学亨利·德雷珀(HD)星表中的恒星进行二维分类。到目前为止，已有13万颗恒星被分类，它们的光谱类型以密歇根光谱星表的标题公布。在目前的提案中，国际恒星分类协会打算对星表第五卷中的恒星进行分类，所有恒星都位于南半球；并开始对第六卷中的恒星进行分类。本科生和研究生将参与其中，尽管根据恒星的光谱对恒星进行分类的关键任务将由国际恒星分类协会来完成，以保持一致性。