Planet Embryos in Vortex Wombs: Protoplanetary Disks and the Formation of Planetesimals

漩涡子宫中的行星胚胎：原行星盘和星子的形成

• 批准号: 0302146
• 负责人: Joseph Barranco
• 金额: $ 18万
• 依托单位: Barranco Joseph A
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0302146&HistoricalAwards=false
• 关键词: Planet; Embryos; Vortex; Wombs; Protoplanetary

AST-0302146Barranco, JosephDr. Barranco is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to carry out a program of research and education at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara, and then at the Harvard-Smithsonian Center for Astrophysics. He will pursue an integrated theoretical, computational, observational, and experimental program to study the dynamics of protoplanetary disks and the process of planet formation within them. High-resolution radio (millimeter and submillimeter) observations of dust emission can be used to construct detailed maps of non-axisymmetric features such as vortices, clumps, ring arcs and warps. Dr. Barranco will use three-dimensional, two-fluid simulations to model the gas and dust dynamics of the observed non-axisymmetric phenomena. The goal is to determine whether coherent structures in the gas flow can generate coherent structures in the particle concentration, and to elucidate what role this plays in the formation of the first generation of planetesimals. In addition to his research, Dr. Barranco will collaborate with the Algebra Project, a national mathematics literacy program. The Algebra Project focuses on helping low-income students and students of color (particularly African-American and Latino students) master algebra in middle school/junior high school, far earlier than the expectations of most urban/rural school districts. He will develop an algebra-based physics and astronomy curriculum that complements the goals of their program, namely math literacy, yet at the same time develops interest, intuition, appreciation, and perhaps passion, for the physical sciences. ***

AST-0302146Barranco，Josephdr。 Barranco被授予NSF天文学和天体物理学博士后研究金，以在加利福尼亚大学，圣塔芭芭拉分校的Kavli理论物理学研究所，然后在哈佛 - 史密斯森学士的天体物理学中心进行研究和教育计划。 他将追求一个综合的理论，计算，观察和实验计划，以研究原球磁盘的动力学和其中的行星形成过程。高分辨率无线电（毫米和亚毫米计）的灰尘发射观察结果可用于构建非轴对称特征的详细图，例如涡流，团块，环形弧和扭曲。 Barranco博士将使用三维的两流体模拟来对观察到的非轴对称现象的气体和灰尘动态进行建模。目的是确定气流中的相干结构是否可以在颗粒浓度中产生相干结构，并阐明这在第一代行星模拟的形成中所扮演的作用。除了他的研究外，Barranco博士还将与国家数学扫盲计划代数项目合作。代数项目的重点是帮助低收入学生和有色人种（尤其是非裔美国人和拉丁裔学生）大师代数在中学/初中，远胜于大多数城市/农村学区的期望。他将开发一个基于代数的物理和天文学课程，该课程补充了他们计划的目标，即数学素养，但同时又对身体科学产生了兴趣，直觉，欣赏，也许是激情。 ***