Collaborative Research: Science with the OVRO-LWA -- Investigating Space Weather in Young Stellar Systems

合作研究：与 OVRO-LWA 的科学——研究年轻恒星系统中的空间天气

• 批准号: 2206590
• 负责人: Andrea Isella
• 金额: $ 44.65万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2206590&HistoricalAwards=false
• 关键词: Collaborative; Research; Science; OVRO; LWA

The proposed work constitutes one of the first systematic studies of space weather in other solar systems. The team seeks to understand space weather in young planetary systems, interactions with planetary magnetospheres, and the evolution of space weather over the first billion years of a planetary system’s lifetime. The team will make observations of approximately 2000 young (less than a billion years old) stellar systems with the Owens Valley Radio Observatory - Long Wavelength Array, a new, low-frequency radio observatory. The team will search for radio bursts associated with Coronal Mass Ejections and planetary emission arising from the electrodynamic interaction between stellar winds, planet magnetospheres, and moons, as in the case of the Jupiter-Io system. The team will conduct a two-pronged educational plan aimed at improving STEM education in elementary and middle schools in the Houston area, and developing a synergetic Radio Astronomy Laboratory for undergraduate and graduate students that exploits the collaboration between Rice University, Caltech, and the staff of the OVRO-LWA. The Rice University team will develop Astronomy modules for the annual Rice Elementary Model STEM Lab and the Rice Applied Mathematics Program, which target 3rd-8th grade Math/Science teachers. The larger collaboration will develop a Radio Astronomy Laboratory based on the constructions of small radio telescopes and including the participation of OVRO-LWA staff.Dynamic spectra from OVRO-LWA, characterized by short cadence (10s) and high resolution in frequency (24 kHz), will be used to constrain the physical processes responsible for the observed emission and measure the mass and kinetic energy of stellar CMEs, and well as the magnetic field of planets. With this large source sample, the team will measure the temporal variation of space weather during the first billion years of the stellar and planetary evolution, and study how these phenomena vary as a function of the stellar mass and age. The team will use these observations to obtain the first direct measurements of the mass and kinetic energy of Coronal Mass Ejections in stars other than the Sun, and the intensity of magnetic fields of young exoplanets. Another science objective will be the discovery of planets through their radio emission in the frequency range of 120-167 MHz. This represents a completely new way to search for and confirm the existence of exoplanets.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.

拟议的工作构成了其他太阳系中太空天气的最早系统研究之一。该团队试图了解年轻行星系统中的太空天气，与行星磁层的互动以及在行星系统终生的前十亿年中太空天气的演变。该团队将与Owens Valley Radio天文台 - 长波长阵列（一种新的低频无线电观测）一起观察大约2000年的年轻（不到十亿年）的恒星系统。该团队将搜索与恒星风，行星磁层和卫星之间的电子相互作用引起的与冠状质量弹射和行星发射相关的无线电爆发，如木星-IO系统。该团队将制定一项两管齐的教育计划，旨在改善休斯顿地区的小学和中学的STEM教育，并为本科生和研究生开发一个协同的射电天文学实验室，以利用赖斯大学，加州大学，加州大学和Ovro-LWA的工作人员之间的合作。赖斯大学团队将为年度水稻基本模型STEM实验室和Rice Applied Mathematics计划开发天文学模块，该计划针对3-8年级的数学/科学教师。较大的合作将根据小射电望远镜的结构开发射电天文学实验室，包括OVRO-LWA员工的参与。来自OVRO-LWA的dynanic Spectra，其特征是节奏短（10s）和频率高分（24 KHz）的高分辨率（24 kHz），以限制有效的物理过程，并构成了观察到的量和KIN量的物理能力，并将其播放量和KIN ASISSERS的播放和KIN播出，并将其播放。行星场。有了这个大型源样本，该团队将在恒星和行星演变的头十亿年内衡量太空天气的暂时变化，并研究这些现象如何随着恒星质量和年龄的函数而变化。该团队将使用这些观察结果获得第一个直接测量太阳以外的恒星中冠状质量弹出的质量和动能，以及年轻的系外行星的磁场强度。另一个科学目标是通过在120-167 MHz的频率范围内通过无线电发射发现行星。这是搜索和确认外部活动存在的一种全新的方式。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，被视为通过评估而被视为珍贵的支持。