Circumstellar Matter: Neutral Shells and Planetary Nebula Formation

星周物质：中性壳和行星状星云的形成

• 批准号: 9617941
• 负责人: Patrick Huggins
• 金额: $ 10.5万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9617941&HistoricalAwards=false
• 关键词: Circumstellar; Matter; Neutral; Shells; Planetary

Huggins, Patrick AST 96-17941 Dr. Huggins continues his research on the latest stages of stellar evolution in low and intermediate mass stars - the transition from the AGB phase to white dwarfs and the formation of planetary nebulae. He uses a wide variety of observational techniques, including infrared spectro-imaging, millimeter interferometry, and millimeter and sub-millimeter single disk observations to study a sample of objects covering different stages of evolution from precursor proto-planetaries to highly evolved nebulae. Using the molecular and atomic line emission from the neutral shells around these objects, Dr. Huggins will investigate the shell dynamics, velocity field, geometry, and properties of the gas, to develop a detailed picture of the evolution of the neutral shells and the formation of planetary nebulae. ***

Huggins，Patrick AST 96-17941 Huggins博士继续对低和中间群众恒星恒星进化的最新阶段进行研究 - 从AGB阶段到白矮人的过渡以及行星星云的形成。 他使用多种观察技术，包括红外光谱，毫米干涉仪以及毫米和亚毫米单盘观测，以研究涵盖从前体的原始植物到高度演化的Nebulae进化的物体样本。 Huggins博士利用来自这些物体周围的中性壳的分子和原子线发射，将研究壳动力学，速度场，几何和气体的性质，以形成中性壳的演化以及行星星云的形成的详细图片。 ***