The Near Stellar Environment

近恒星环境

• 批准号: 8717872
• 负责人: Benjamin Zuckerman
• 金额: $ 19.16万
• 依托单位: University of California-Los Angeles
• 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: 1988-02-15 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8717872&HistoricalAwards=false
• 关键词: Near; Stellar; Environment

Zuckerman will make observations in the optical, infrared, and millimeter regimes of: 1) dust disks (perhaps pre-planetary) around main sequence stars, with emphasis on Beta Pictoris, 2) cool companions and dust clouds around T Tauri and other pre- main-sequence stars, and 3) dust and molecules around mass-losing evolved stars, including planetary nebulae. Techniques include use of the stellar coronagraph, in the optical and infrared, and infrared speckle interferometry. Planets are thought to form from dusty gas accumulated around young stars. Dust disks suggestive of planetary formation have recently been detected around a few stars. Zuckerman will pursue this and closely related subjects with state-of-the-art instrumentation, including a camera that blocks out the light from the central star and a computer-based technique that yields very sharp infrared pictures. Zuckerman is a co-discoverer of a possible planetary companion of a nearby star.

扎克曼将在光学、红外和毫米波段进行观测：1)主序恒星周围的尘埃盘(可能是行星前的)，重点是贝塔斗牛座；2)金牛座和其他主序恒星周围的凉爽伴星和尘埃云；3)质量损失的演化恒星周围的尘埃和分子，包括行星星云。技术包括使用恒星冕仪，在光学和红外，以及红外散斑干涉。行星被认为是由年轻恒星周围积聚的尘埃气体形成的。最近在几颗恒星周围发现了暗示行星形成的尘埃盘。扎克曼将用最先进的仪器来研究这个和密切相关的课题，包括一台遮挡中央恒星光线的相机，以及一种基于计算机的技术，可以产生非常清晰的红外图像。扎克曼是附近一颗恒星可能的行星伴侣的共同发现者。