The Impact of Young Stellar Outflows on their Surroundings

年轻恒星外流对其周围环境的影响

• 批准号: 0401568
• 负责人: Hector Arce
• 金额: --
• 依托单位: Arce Hector G
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0401568&HistoricalAwards=false
• 关键词: Impact; Young; Stellar; Outflows; their

Dr. Arce is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to carry out a program of research and education at the American Museum of Natural History in New York City. Dr. Arce's research aims to study the mass outflow stage of the star formation process. In particular, the study will concentrate on the effects of mass outflows from young stellar objects on the ambient medium at different size and density scales. The research will focus on how much energy and momentum outflows deposit in their surroundings and will study the impact outflows have on the star-formation process, on their parent molecular clouds' evolution, and on the surrounding interstellar medium. The study will utilize new and existing observational instruments as well as extensive datasets from unparalleled surveys; in addition, Dr. Arce will compare the observational data with state-of-the-art numerical models in order to study the effects of outflows on their host clouds' turbulence and on the star-formation process. Dr. Arce's educational program will provide scientific research experiences to high school students from traditionally underrepresented groups through a hands-on project using a small radio telescope. Students involved in the project will gain experience in astronomy, signal processing, and data reduction, analysis and presentation. In addition, the radio telescope will be used to expand other existing educational programs at the AMNH. Dr. Arce will also mentor undergraduate students who participate in the research program outlined above.

Arce博士获得了美国国家科学基金会天文学和天体物理学博士后奖学金，在纽约市的美国自然历史博物馆开展研究和教育项目。Arce博士的研究旨在研究恒星形成过程的质量流出阶段。特别是，该研究将集中于年轻恒星物体的质量流出对不同大小和密度尺度的环境介质的影响。这项研究将重点关注有多少能量和动量流出物沉积在它们周围的环境中，并将研究流出物对恒星形成过程、它们的母分子云的演化以及周围星际介质的影响。这项研究将利用新的和现有的观测仪器以及来自前所未有的调查的广泛数据集；此外，Arce博士将把观测数据与最先进的数值模型进行比较，以研究流出物对其宿主云湍流和恒星形成过程的影响。Arce博士的教育项目将通过一个使用小型射电望远镜的动手项目，为传统上代表性不足的群体的高中生提供科学研究经验。参与该项目的学生将获得天文学、信号处理、数据简化、分析和呈现方面的经验。此外，射电望远镜将用于扩展AMNH现有的其他教育项目。Arce博士还将指导参加上述研究计划的本科生。