Collaborative Research: High Resolution Spectroscopy and Spectro-Astrometry of Warm Gas in Herbig Ae/Be Stars: A Search for Forming Gas Giant Planets

合作研究：Herbig Ae/Be 恒星中温暖气体的高分辨率光谱和光谱天体测量：寻找正在形成的气体巨行星

• 批准号: 1517014
• 负责人: Sean Brittain
• 金额: $ 28.21万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1517014&HistoricalAwards=false
• 关键词: Collaborative; Research; Resolution; Spectroscopy; Spectro

This team will use ground-based telescopes and computer models to detect and characterize exoplanets in disks around other stars. The team will apply novel techniques to detect gas giant planets that are still in the process of forming. If successful, these results would allow us to connect the initial conditions of the planet-forming environment to the kinds of planets that form. Inherent curiosity about how our own planet came to be attracts students from all backgrounds into STEM disciplines. The students involved with this project will have the opportunity to carry out research at one of the frontiers of modern astrophysics by exploiting data available from state of the art observatories and computational modeling. Previous students involved in this group have applied their experiences to careers in K-12 education, industry, national defense, in addition to more traditional research careers. This project will also provide research-based learning opportunities for students in the South Carolina State University - Clemson University bridge program, actively broadening participation of underrepresented groups in astronomy.This program has three principal science goals. (1) Search for circumplanetary disks around companions orbiting Herbig Ae/Be stars: generate a uniform atlas of all archival high resolution M-band observations of Herbig Ae/Be, search for variable CO emission indicative of an orbiting companion, and obtain additional observations. (2) Search for dynamical markers of massive substellar companions. (3) Apply this group's thermochemical model to sources with observed OH and CO emission to test the hypothesis that OH primarily arises from the inner rim of circumstellar disks.

该团队将使用地面望远镜和计算机模型来探测和描述其他恒星周围的系外行星。该团队将应用新技术来探测仍处于形成过程中的气态巨行星。 如果成功，这些结果将使我们能够将行星形成环境的初始条件与形成的行星类型联系起来。 对我们自己的星球是如何形成的内在好奇心吸引了来自各种背景的学生进入STEM学科。参与该项目的学生将有机会通过利用最先进的天文台和计算建模提供的数据，在现代天体物理学的前沿之一进行研究。以前参与这个小组的学生已经将他们的经验应用于K-12教育，工业，国防的职业生涯，以及更传统的研究职业。 该项目还将为南卡罗来纳州州立大学-克莱姆森大学桥梁项目的学生提供以研究为基础的学习机会，积极扩大代表性不足的群体对天文学的参与。 (1)搜寻环绕赫比格Ae/Be星的伴星周围的环行星盘：生成赫比格Ae/Be所有存档高分辨率M波段观测的统一图集，搜寻指示轨道伴星的可变CO排放，并获得额外的观测结果。(2)寻找大质量亚恒星伴星的动力学标记。 (3)应用该组的热化学模型与观测到的OH和CO排放源，以测试的假设，OH主要来自拱盘的内缘。