Postdoctoral Fellowship: AAPF: Investigating the Origins of Hot Jupiters Orbiting A-type Stars

博士后奖学金：AAPF：研究绕 A 型恒星运行的热木星的起源

• 批准号: 2303922
• 负责人: Steven Giacalone
• 金额: $ 33万
• 依托单位: Giacalone, Steven A
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2303922&HistoricalAwards=false
• 关键词: Postdoctoral; Fellowship; AAPF; Investigating; Origins

Steven Giacalone is awarded an NSF Astronomy and Astrophysics Fellowship to carry out a program of research and education at the California Institute of Technology. Giacalone will conduct observations of transiting hot Jupiters (HJs) orbiting A-type stars to better understand their properties and demographics. Results from this project will provide novel insight into how these giant planets arrive at their close-in orbits. For the education component of this project, Giacalone will develop and lead an annual coding workshop for students studying physics and astronomy at nearby community colleges.Using planets detected by the Transiting Exoplanet Survey Satellite, this research will determine if (1) HJs are more common around A-type stars than they are around cooler stars, (2) the angles between the spin axes of A-type stars and the orbital axes of their HJs are consistent with theorized migration mechanisms, and (3) the atmospheric compositions of HJs orbiting A-type stars are indicative of formation in the outer regions of protoplanetary disks. With these studies, the investigator will improve our knowledge of the formation and dynamical histories of HJs, the precise origins of which are still poorly understood. This work will also complement concurrent and future studies of long-period giant planets possible through direct imaging and astrometric surveys.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

史蒂文·吉卡隆（Steven Giacalone）被授予NSF天文学和天体物理学奖学金，以在加利福尼亚理工学院进行研究和教育计划。 Giacalone将对绕A型星星旋转的过渡热木星（HJS）进行观察，以更好地了解其特性和人口统计。该项目的结果将提供有关这些巨型行星如何到达近距离轨道的新见解。 For the education component of this project, Giacalone will develop and lead an annual coding workshop for students studying physics and astronomy at nearby community colleges.Using planets detected by the Transiting Exoplanet Survey Satellite, this research will determine if (1) HJs are more common around A-type stars than they are around cooler stars, (2) the angles between the spin axes of A-type stars and the orbital axes of their HJS与理论上的迁移机制一致，（3）旋转A型恒星的HJS大气组成表明在原星盘外部区域形成。通过这些研究，研究者将提高我们对HJS的形成和动态历史的了解，其确切起源仍然很少了解。这项工作还将通过直接成像和星体调查来补充对长期巨型行星的同时研究和未来的研究。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的智力优点和更广泛影响的评估审查标准来通过评估来获得支持的。