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. ***

帕特里克·哈金斯 AST 96-17941 哈金斯博士继续研究中低质量恒星恒星演化的最新阶段——从 AGB 阶段到白矮星的转变以及行星状星云的形成。 他使用各种观测技术，包括红外光谱成像、毫米干涉测量以及毫米和亚毫米单盘观测来研究涵盖从前身原行星到高度演化星云的不同演化阶段的物体样本。哈金斯博士将利用这些天体周围中性壳层的分子和原子线发射来研究气体的壳层动力学、速度场、几何形状和特性，以绘制中性壳层演化和行星状星云形成的详细图片。 ***