CAREER: Origins of Structure in Planetary Systems

职业：行星系统结构的起源

• 批准号: 1555385
• 负责人: Ruth Murray-Clay
• 金额: $ 58.16万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-04-01 至 2016-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1555385&HistoricalAwards=false
• 关键词: CAREER; Origins; Structure; Planetary; Systems

The PI and her students at the University of California Santa Barbara will carry out a comprehensive program of theoretical studies that will allow her to predict which physical conditions generate planetary systems comparable to our own. Ultimately, this will facilitate identification of outlier planets that could host life. Integrated with her research program, she will identify Hispanic students interested in physics as they enter UCSB and lead an effort to increase their retention in the physics major. To do this, she will develop a freshman course specifically designed for underrepresented minority students, help them develop a cohort and establish a mentoring network as they continue with their undergraduate studies, and provide them research opportunities.The specific goals of this project are to (1) test whether disk turbulence sets the wide separation limit for core-accretion formation of giant planets by calculating the efficiency of pebble accretion in turbulent disks, (2) test whether giant planets formed via core accretion or gravitational fragmentation, (3) perform dynamical analyses of disturbed debris disks to study scattered interlopers in the wide-separation planet population, (4) use the combined dynamics of classical and resonant Kuiper belt objects to constrain the outer solar system's dynamical history, and (5) synthesize the results of these studies into collections of planetary system architectures that can be used to test which physical parameters determine a particular system's structure.

这位少年派和她在加州大学圣巴巴拉分校的学生将开展一项全面的理论研究计划，使她能够预测哪些物理条件产生的行星系统可以与我们的行星系统相媲美。最终，这将有助于识别可能存在生命的离群点行星。与她的研究计划相结合，她将在进入UCSB时识别对物理感兴趣的拉美裔学生，并领导一项努力，以提高他们在物理专业的留存率。为了做到这一点，她将开发一门专门为未被充分代表的少数族裔学生设计的大一课程，帮助他们在继续本科学习的同时建立一个队列和指导网络，并为他们提供研究机会。该项目的具体目标是(1)通过计算湍流盘中卵石吸积的效率，测试盘状湍流是否为巨型行星的核心-吸积形成设定了广泛的分离极限，(2)测试巨型行星是通过核心吸积形成的还是通过引力碎裂形成的，(3)对扰动的碎片盘进行动力学分析，以研究大分离行星群中分散的入侵者，(4)使用经典和共振柯伊伯带天体的组合动力学来约束外太阳系的动力学历史，以及(5)将这些研究的结果综合成行星系统结构的集合，这些结构可以用来测试哪些物理参数决定了特定系统的结构。