CAREER: Planet Formation at High Resolution

职业：高分辨率行星形成

• 批准号: 2046883
• 负责人: Quinn Konopacky
• 金额: $ 62.61万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2046883&HistoricalAwards=false
• 关键词: CAREER; Planet; Formation; Resolution

The team will conduct high-resolution optical and spectroscopic surveys of young planetary systems in an attempt to directly image and collect high-resolution spectra of hot Jovian-mass planets. The team will use the upgraded Gemini Planetary Imager (GPI 2.0) on the Gemini North telescope and the HISPEC high-resolution spectrometer on the Keck II telescope. They will obtain the first high-resolution spectra of forming gas giant planets, offering a pristine view of their atmospheric structure and abundances. The team will also develop a novel educational component for undergraduate astronomy courses based on a planetarium-based program.The GPI 2.0 optical survey will target very young stars in nearby star-forming regions in Taurus and Rho Ophiuchus. It will be the most sensitive direct imaging survey ever conducted in this region. Using the demographic information discovered in the first iteration of GPI, the team expects to detect as many as 10 new exoplanets during the epoch of formation, constraining the timescale of formation, migration, accretion histories, and planet-disk interactions. Follow-up observations with the HISPEC spectrometer on the Keck II Telescope will provide R~100,000 spectra across the entire near-infrared wavelength regime (0.9-2.5 μm). The team will investigate predicted science performance for the instrument and provide targets from GPI 2.0 for first-light observations with HISPEC in 2024.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.

该团队将对年轻的行星系统进行高分辨率的光学和光谱调查，试图直接成像和收集热木星质量行星的高分辨率光谱。该小组将使用升级后的双子座北望远镜上的双子座行星成像仪（GPI 2.0）和凯克II望远镜上的HISPEC高分辨率光谱仪。他们将获得形成气体巨行星的第一个高分辨率光谱，提供其大气结构和丰度的原始视图。该团队还将基于一个基于天文馆的项目为本科天文学课程开发一个新的教育组件。GPI 2.0光学巡天将瞄准金牛座和蛇夫座附近恒星形成区的非常年轻的恒星。这将是在该地区进行的最敏感的直接成像调查。利用GPI第一次迭代中发现的人口统计信息，该团队预计将在形成时期检测到多达10颗新的系外行星，从而限制形成，迁移，吸积历史和行星盘相互作用的时间尺度。用凯克II望远镜上的HISPEC光谱仪进行的后续观测将提供整个近红外波长范围（0.9-2.5 μm）的R~ 100，000光谱。该团队将调查该仪器的预测科学性能，并在2024年为HISPEC的第一次光线观测提供GPI 2.0的目标。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。