Unveiling diverse planet formation environments with millimeter imaging

利用毫米成像揭示多样化的行星形成环境

• 批准号: 2307916
• 负责人: Jane Huang
• 金额: $ 44.93万
• 依托单位: Columbia University
• 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: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2307916&HistoricalAwards=false
• 关键词: Unveiling; diverse; planet; formation; environments

Planets are made from dust, gas, and ice in disks around young stars. Disk observations offer insight into why planet properties vary, and ultimately how places like the Solar System might develop. Planet formation models have been heavily shaped by the nearby, isolated disks that could be most readily observed. To explore variations in planet formation conditions, the program will use radio telescopes to analyze the structure and chemistry of disks in environments that have been characterized in less detail. The investigator will train a graduate and an undergraduate student. She will also mentor underrepresented public high school students as part of Columbia University's Engineering the Next Generation program.This program will conduct sensitive observational studies of protoplanetary disks under conditions that have traditionally been challenging to characterize in order to provide a better understanding of how the circumstances of planet formation might deviate from those of the best-studied systems. Molecular line and dust continuum images from the Atacama Large Millimeter/Sub-millimeter Array will be used to compare the chemical properties of disks undergoing late infall of cloud/envelope material to previous observations of isolated disks, re-evaluate the evolutionary classification of an apparently young, embedded disk exhibiting evidence of planet-disk interactions, and search for disk substructures in a highly irradiated star-forming region to assess whether planet-disk interactions occur in a manner similar to nearby, less-irradiated regions. The investigator will also use widefield CO mapping with the Green Bank Telescope to characterize the mass and distribution of the large-scale gas reservoir available to a disk undergoing late infall.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.

行星是由年轻恒星周围磁盘中的灰尘，气体和冰制成的。磁盘观测提供了有关行星属性为什么变化的洞察力，最终是太阳系之类的地方如何发展的。行星形成模型已被附近的孤立磁盘大大塑造，这些磁盘可能最容易观察到。为了探索行星形成条件的变化，该计划将使用射电望远镜来分析磁盘的结构和化学性质，而磁盘的结构和化学性质却较不详细。调查人员将培训一名研究生和一名本科生。作为哥伦比亚大学工程学的一部分，她还将指导代表人数不足的公立高中生。该计划将在传统上具有挑战性的特征性的敏感观察性研究对原动性磁盘进行敏感的观察性研究，以便更好地了解星球形成的环境如何偏离最佳系统的系统。来自Atacama大毫米/亚毫米/亚毫米阵列的分子线和尘埃连续图像将使用云/信封材料的晚期磁盘的化学性质与隔离磁盘的先前观察结果进行比较，重新评估了一个明显年轻的磁盘，并在嵌入式磁盘上进行了逐步互动，并逐渐播放了均匀的互动，并在均匀的互动中进行了验证，并逐渐播放了效率，并逐渐播放了效率，并逐步探讨了逐步互动，并在地球上进行了效率调查。行星 - 磁盘相互作用是否以类似于附近的较少露下区域的方式发生。研究人员还将与绿色银行望远镜一起使用广场式映射，以表征磁盘可用于持续后期的磁盘可用的大规模天然气库的质量和分布。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知识分子优点和更广泛影响的评估审查审查标准来通过评估来通过评估来获得支持的。