Collaborative Research: Exploring the Compositions of Exoplanetary Systems with Observations and Modeling of Dusty Circumstellar Disks

合作研究：通过尘埃环星盘的观测和建模探索系外行星系统的组成

• 批准号: 2307613
• 负责人: Jared Males
• 金额: $ 24.25万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2307613&HistoricalAwards=false
• 关键词: Collaborative; Research; Exploring; Compositions; Exoplanetary

The goal of this proposal is to determine the composition of rocky material orbiting other stars. When rocks collide, they release small dust particles that reflect and absorb starlight. This project will involve both observations of this dust around other stars and modeling of that dust. The location of dust is interesting because it reveals where small rocky asteroids formed and were left unperturbed by planets. Modeling of the dust can reveal what it is made of, such as the amounts of silicon, oxygen, ice, and carbon. Small rocky bodies are the building blocks of planets. Dust and asteroid compositions provide a window into the types of planets that may also orbit those stars. At Carnegie, each summer an undergraduate student who does not have access to research at their home institution will participate in this research program and be part of a cohort of students who will participate in professional development and team-building activities designed to enhance their research experience. A graduate student will benefit from co-mentorship that includes training in astronomical instrumentation at University of Arizona and in interdisciplinary scientific research a Carnegie’s Earth and Planets Laboratory.The investigators will use a new imaging system, MagAO-X, at the Magellan Telescope. This system removes the distorting effects of the Earth’s atmosphere so that images of other stars are as sharp as possible. Disks of dust around other stars faintly reflect the light of their stars, and MagAO-X can observe the color of this reflected light. To interpret the images, the investigators will make models of how dust of different composition reflects starlight. A graduate student and undergraduate students will work on the project. They will get training in interdisciplinary astronomical and planetary sciences and in telescope hardware.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.

该提案的目标是确定绕其他恒星运行的岩石物质的成分，当岩石碰撞时，它们会释放出反射和吸收星光的小尘埃颗粒。该项目将涉及对其他恒星周围的尘埃的观测和对这些尘埃的建模。尘埃的位置很有趣，因为它揭示了小型岩石小行星的形成位置以及未受到行星干扰的地方。对尘埃的建模可以揭示其成分，例如硅、氧、冰和碳的含量。是建筑物尘埃和小行星的成分为了解可能围绕这些恒星运行的行星类型提供了一个窗口。在卡内基，每年夏天，无法在其所在机构进行研究的本科生都会参加该研究项目，并成为其中的一员。学生群体中的一部分将参加旨在增强研究经验的专业发展和团队建设活动，研究生将受益于共同指导，其中包括亚利桑那大学的天文仪器培训和卡内基的跨学科科学研究培训。地球和行星实验室。研究人员将在麦哲伦望远镜上使用新的成像系统 MagAO-X，该系统消除了地球大气层的扭曲影响，使其他恒星周围的尘埃盘的图像尽可能清晰。恒星微弱地反射其恒星的光，MagAO-X 可以观察这种反射光的颜色，研究人员将制作不同成分的星光尘埃的模型。项目。获得跨学科天文学和行星科学以及望远镜硬件方面的培训。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。