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: 9986159
• 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: 2000
• 资助国家: 美国
• 起止时间: 2000-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9986159&HistoricalAwards=false
• 关键词: Circumstellar; Matter; Neutral; Shells; Planetary

ABSTRACTHuggins, Patrick"Circumstellar Matter: Neutral Shells & Planetary Nebula Formation"AST-9986159This project continues the PI's study of neutral envelopes of the planetary nebula stage of stellar evolution. The proposed work will include several new areas of investigation: (1) the shaping of planetary nebulae by jets; (2) episodic mass loss and chemical changes; (3) globule and knot formation in the ejecta; and (4) circumstellar envelope evolution. The results will contribute substantially to improving our understanding of the latest stages of stellar evolution and how matter ultimately is returned to the interstellar medium. The models that are developed will be extensively compared to ground- and space-based multiwavelength observations.Funding for this project was provided by the NSF program for Stellar Astronomy & Astrophysics (AST/SAA).

Apptracthuggins，Patrick“情节问题：中性壳和行星星云形成” AST-9986159这个项目继续PI对恒星进化的行星星云阶段的中性信封进行研究。 拟议的工作将包括一些新的调查领域：（1）喷气机对行星星云的塑造； （2）情节质量损失和化学变化； （3）喷射中的球和结的形成； （4）星际信封的演变。 结果将有助于提高我们对恒星进化的最新阶段的理解，以及最终如何将其返回到星际媒介。 开发的模型将与地面和空间的多波长观测值相比。该项目的资金由NSF恒星天文学和天体物理学（AST/SAA）提供。