Investigation of Small-scale Jets In and Near Sunspot Penumbrae: Early DKIST Science

对太阳黑子半影及其附近小型喷流的研究：早期 DKIST 科学

• 批准号: 2307505
• 负责人: Sanjiv Tiwari
• 金额: $ 47.32万
• 依托单位: Bay Area Environmental Research Institute
• 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=2307505&HistoricalAwards=false
• 关键词: Investigation; Small; scale; Jets; Near

This project from the Bay Area Environmental Research Institute (BAERI) and the University of Alabama, Huntsville seeks analyze observations of sunspots from National Science Foundation’s (NSF’s) Daniel K. Inouye Solar Telescope (DKIST). This highest ever-resolution data in different wavelengths offers a unique opportunity to explore dynamics of jets and dots in sunspots. Improving understanding of fine-scale dynamics in the strongest magnetic field regions on our nearest star, the Sun, has broad social impact. Large scale features such as coronal jets and coronal mass ejections, which are responsible for space weather. Small-scale features, such as those examined in this study, have some similarities to large scale structures, but also contribute to the complexity of the solar environment. The broader impacts of this project include training REU students, and high school interns, who will not only be introduced to solar physics research but can also get motivated to pursue a career in any science. The proposed work will also increase the partnership between three institutions, BAERI, University of Alabama, Huntsville, and the National Solar Observatory.Specifically, this project seeks to utilize data from Hinode’s Solar Optical Telescope, NASA’s Interface Region Imaging Spectrograph (IRIS), and DKIST in combination with MHD simulations of sunspot penubrae to (i) understand the mechanisms that generate jets and bright dots in and around sunspot penumbrae, (ii) investigate to what extent penumbral jets contribute to transition region and coronal heating, and (iii) investigate whether penumbral jets have mixed-polarity field at their base, and whether they spin, similar to X-ray jets.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.

该地区的环境研究所（Baeri）和阿拉巴马大学的项目寻求对国家科学基金会（NSF）的盆栽观察。太阳有广泛的影响，这是造成太空的原因。被介绍给太阳能purso是有动力从事任何事业。太阳光学望远镜，NASA的界面区域成像光谱仪（IRIS）和DKIST与Sunspot Penubrae的MHD模拟结合使用，以了解（i）了解在Sunspot Penumbrae中产生喷气机和明亮点的机制，并调查何种程度的喷枪在何种程度上有助于射击的多大程度过渡和冠状加热。Penumbral喷气机在其基部是否具有混合极性领域，以及它们是否旋转 - 射击。这一奖项反映了NSF'SFLUTORTS值得支持的支持，以此为主题，值得支持使用Toundation的Al优点和更广泛的影响。