Spectroscopy of Pre-main Sequence Stars

前主序星的光谱学

• 批准号: 0204021
• 负责人: George Herbig
• 金额: --
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0204021&HistoricalAwards=false
• 关键词: Spectroscopy; Pre; main; Sequence; Stars

AST-0204021PI HerbigThe project has two goals: (1) To investigate at high resolution the spectra of the so-called Herbig Ae/Be stars, believed to be intermediate-mass analogs of the young stellar objects known as T Tauri stars, by concentrating on those of known age and luminosity because the are members of five well-investigated young star clusters; and (2) to extend the spectroscopy of several FU Orionis-like eruptive variable stars in order to clarify a number of possibly critical conflicts with the standard interpretation of the so-called Fuor phenomenon in this class of star. The FU Orionis stars are pre-main sequence stars that have brightened significantly sometimes on short time scales and are not well understood.

该项目有两个目标：(1)以高分辨率研究所谓的赫比格Ae/Be恒星的光谱，这些恒星被认为是被称为金牛座T星的年轻恒星物体的中等质量类似物，通过集中研究那些已知年龄和光度的恒星，因为它们是五个被充分研究的年轻星团的成员；(2)扩展几颗类似猎户座FU的爆发变星的光谱，以澄清一些可能与这类恒星中所谓Fuor现象的标准解释相冲突的关键问题。猎户座FU恒星是主序前恒星，有时在短时间内显着变亮，而且还没有得到很好的理解。