High Resolution Imaging and Spectroscopy of Star Formation Regions

恒星形成区域的高分辨率成像和光谱学

• 批准号: 8802458
• 负责人: Steven Beckwith
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-05-15 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8802458&HistoricalAwards=false
• 关键词: Resolution; Imaging; Spectroscopy; Star; Formation

This award supports research concerning young stellar objects and especially their circumstellar disks. What are the disks' masses, shapes, rotation curves, and particle sizes? The research includes infrared speckle imaging of regions of ongoing star and planet formation, imaging at millimeter wavelengths, continuation of infrared spectroscopic observations of molecular and atomic hydrogen lines, and some theoretical interpretation. Young stars form out of shrinking clouds of gas and dust. Much gas and dust remains behind, possibly forming a planetary system. Beckwith has developed the techniques for state-of-the-art accurate mapping of the gas and dust disks surrounding young stars. He has already mapped the disk surrounding the star HL Tauri which may resemble our solar system at the time of its formation. He will use even more refined techniques to observe the circumstellar materials of other stars in both infrared and radio wavelengths.

该奖项支持关于年轻恒星物体的研究，特别是它们的星周圆盘。这些圆盘的质量、形状、旋转曲线和颗粒大小是什么？这项研究包括正在进行的恒星和行星形成区域的红外散斑成像，毫米波长的成像，分子和原子氢线的红外光谱观测的继续，以及一些理论解释。年轻恒星是由气体和尘埃组成的不断缩小的云形成的。留下了许多气体和尘埃，可能形成了一个行星系统。贝克维斯已经开发出了最先进的准确绘制年轻恒星周围气体和尘埃盘的技术。他已经绘制了金牛座HL恒星周围的圆盘图，这颗恒星可能与我们形成时的太阳系相似。他将使用更精细的技术来观察其他恒星的红外线和射电波长的恒星周围物质。